The X Window SystemSynopsisAn installation of &os; using
bsdinstall does not automatically
install a graphical user interface. This chapter describes how
to install and configure &xorg;,
which provides the open source X Window System used to provide a
graphical environment. It then describes how to find and
install a desktop environment or window manager.Users who prefer an installation method that automatically
configures the &xorg; and offers a
choice of window managers during installation should refer to
the
website.For more information on the video hardware that
&xorg; supports, refer to the x.org website.After reading this chapter, you will know:The various components of the X Window System, and how
they interoperate.How to install and configure
&xorg;.How to install and configure several window managers
and desktop environments.How to use &truetype; fonts in
&xorg;.How to set up your system for graphical logins
(XDM).Before reading this chapter, you should:Know how to install additional third-party
software as described in .TerminologyWhile it is not necessary to understand all of the details
of the various components in the X Window System and how they
interact, some basic knowledge of these components can be
useful.X serverX was designed from the beginning to be
network-centric, and adopts a client-server
model. In this model, the X server runs on
the computer that has the keyboard, monitor, and mouse
attached. The server's responsibility includes tasks such
as managing the display, handling input from the keyboard
and mouse, and handling input or output from other devices
such as a tablet or a video projector. This confuses some
people, because the X terminology is exactly backward to
what they expect. They expect the X server
to be the big powerful machine down the hall, and the
X client to be the machine on their
desk.X clientEach X application, such as
XTerm or
Firefox, is a
client. A client sends messages to the
server such as Please draw a window at these
coordinates, and the server sends back messages
such as The user just clicked on the OK
button.In a home or small office environment, the X server
and the X clients commonly run on the same computer. It
is also possible to run the X server on a less powerful
computer and to run the X applications on a more powerful
system. In this scenario, the communication between the X
client and server takes place over the network.window managerX does not dictate what windows should look like
on-screen, how to move them around with the mouse, which
keystrokes should be used to move between windows, what
the title bars on each window should look like, whether or
not they have close buttons on them, and so on. Instead,
X delegates this responsibility to a separate window
manager application. There are dozens of window
managers available. Each window manager provides
a different look and feel: some support virtual desktops,
some allow customized keystrokes to manage the desktop,
some have a Start button, and some are
themeable, allowing a complete change of the desktop's
look-and-feel. Window managers are available in the
x11-wm category of the Ports
Collection.Each window manager uses a different configuration
mechanism. Some expect configuration file written by hand
while others provide graphical tools for most
configuration tasks.desktop environmentKDE and
GNOME are considered to be
desktop environments as they include an entire suite of
applications for performing common desktop tasks. These
may include office suites, web browsers, and games.focus policyThe window manager is responsible for the mouse focus
policy. This policy provides some means for choosing
which window is actively receiving keystrokes and it
should also visibly indicate which window is currently
active.One focus policy is called
click-to-focus. In this model, a window
becomes active upon receiving a mouse click. In the
focus-follows-mouse policy, the window that
is under the mouse pointer has focus and the focus is
changed by pointing at another window. If the mouse is
over the root window, then this window is focused. In the
sloppy-focus model, if the mouse is moved
over the root window, the most recently used window still
has the focus. With sloppy-focus, focus is only changed
when the cursor enters a new window, and not when exiting
the current window. In the click-to-focus
policy, the active window is selected by mouse click. The
window may then be raised and appear in front of all other
windows. All keystrokes will now be directed to this
window, even if the cursor is moved to another
window.Different window managers support different focus
models. All of them support click-to-focus, and the
majority of them also support other policies. Consult the
documentation for the window manager to determine which
focus models are available.widgetsWidget is a term for all of the items in the user
interface that can be clicked or manipulated in some way.
This includes buttons, check boxes, radio buttons, icons,
and lists. A widget toolkit is a set of widgets used to
create graphical applications. There are several popular
widget toolkits, including Qt, used by
KDE, and GTK+, used by
GNOME. As a result,
applications will have a different look and feel,
depending upon which widget toolkit was used to create the
application.Installing &xorg;On &os;, &xorg; can be installed
as a package or port.The binary package can be installed quickly but with
fewer options for customization:&prompt.root; pkg install xorgTo build and install from the Ports Collection:&prompt.root; cd /usr/ports/x11/xorg
&prompt.root; make install cleanEither of these installations results in the complete
&xorg; system being installed. Binary packages
are the best option for most users.A smaller version of the X system suitable for experienced
users is available in x11/xorg-minimal. Most
of the documents, libraries, and applications will not be
installed. Some applications require these additional
components to function.&xorg; ConfigurationWarrenBlockOriginally contributed by&xorg;&xorg;Quick Start&xorg; supports most common
video cards, keyboards, and pointing devices.Video cards, monitors, and input devices are
automatically detected and do not require any manual
configuration. Do not create xorg.conf
or run a step unless automatic
configuration fails.If &xorg; has been used on
this computer before, move or remove any existing
configuration files:&prompt.root; mv /etc/X11/xorg.conf ~/xorg.conf.etc
&prompt.root; mv /usr/local/etc/X11/xorg.conf ~/xorg.conf.localetcAdd the user who will run
&xorg; to the
video or
wheel group to enable 3D acceleration
when available. To add user
jru to whichever group is
available:&prompt.root; pw groupmod video -m jru || pw groupmod wheel -m jruThe TWM window manager is included
by default. It is started when
&xorg; starts:&prompt.user; startxOn some older versions of &os;, the system console
must be set to &man.vt.4; before switching back to the
text console will work properly. See
.User Group for Accelerated VideoAccess to /dev/dri is needed to allow
3D acceleration on video cards. It is usually simplest to add
the user who will be running X to either the
video or wheel group.
Here, &man.pw.8; is used to add user
slurms to the
video group, or to the
wheel group if there is no
video group:&prompt.root; pw groupmod video -m slurms || pw groupmod wheel -m slurmsKernel Mode Setting (KMS)When the computer switches from displaying the console to
a higher screen resolution for X, it must set the video
output mode. Recent versions of
&xorg; use a system inside the kernel to do
these mode changes more efficiently. Older versions of &os;
use &man.sc.4;, which is not aware of the
KMS system. The end result is that after
closing X, the system console is blank, even though it is
still working. The newer &man.vt.4; console avoids this
problem.Add this line to /boot/loader.conf
to enable &man.vt.4;:kern.vty=vtConfiguration FilesManual configuration is usually not necessary. Please do
not manually create configuration files unless
autoconfiguration does not work.Directory&xorg; looks in several
directories for configuration files.
/usr/local/etc/X11/ is the recommended
directory for these files on &os;. Using this directory
helps keep application files separate from operating system
files.Storing configuration files in the legacy
/etc/X11/ still works. However, this
mixes application files with the base &os; files and is not
recommended.Single or Multiple FilesIt is easier to use multiple files that each configure a
specific setting than the traditional single
xorg.conf. These files are stored in
the xorg.conf.d/ subdirectory of the
main configuration file directory. The full path is
typically
/usr/local/etc/X11/xorg.conf.d/.Examples of these files are shown later in this
section.The traditional single xorg.conf
still works, but is neither as clear nor as flexible as
multiple files in the xorg.conf.d/
subdirectory.Video Cards&intel;3D acceleration is supported on most &intel;
graphics up to Ivy Bridge (HD Graphics 2500, 4000, and
P4000), including Iron Lake (HD Graphics) and
Sandy Bridge (HD Graphics 2000).Driver name: intelFor reference, see .&amd; Radeon2D and 3D acceleration is supported on Radeon
cards up to and including the HD6000 series.Driver name: radeonFor reference, see .NVIDIASeveral NVIDIA drivers are available in the
x11 category of the Ports
Collection. Install the driver that matches the video
card.For reference, see .Hybrid Combination GraphicsSome notebook computers add additional graphics
processing units to those built into the chipset or
processor. Optimus combines
&intel; and NVIDIA hardware.
Switchable Graphics or
Hybrid Graphics are a combination
of an &intel; or &amd; processor and an &amd; Radeon
GPU.Implementations of these hybrid graphics systems
vary, and &xorg; on &os; is
not able to drive all versions of them.Some computers provide a BIOS
option to disable one of the graphics adapters or select
a discrete mode which can be used
with one of the standard video card drivers. For
example, it is sometimes possible to disable the NVIDIA
GPU in an Optimus system. The
&intel; video can then be used with an &intel;
driver.BIOS settings depend on the model
of computer. In some situations, both
GPUs can be left enabled, but
creating a configuration file that only uses the main
GPU in the Device
section is enough to make such a system
functional.Other Video CardsDrivers for some less-common video cards can be
found in the x11-drivers directory
of the Ports Collection.Cards that are not supported by a specific driver
might still be usable with the
x11-drivers/xf86-video-vesa driver.
This driver is installed by x11/xorg.
It can also be installed manually as
x11-drivers/xf86-video-vesa.
&xorg; attempts to use this
driver when a specific driver is not found for the video
card.x11-drivers/xf86-video-scfb is a
similar nonspecialized video driver that works on many
UEFI and &arm; computers.Setting the Video Driver in a FileTo set the &intel; driver in a configuration
file:Select &intel; Video Driver in a File/usr/local/etc/X11/xorg.conf.d/driver-intel.confSection "Device"
Identifier "Card0"
Driver "intel"
# BusID "PCI:1:0:0"
EndSectionIf more than one video card is present, the
BusID identifier can be uncommented
and set to select the desired card. A list of video
card bus IDs can be displayed with
pciconf -lv | grep -B3
display.To set the Radeon driver in a configuration
file:Select Radeon Video Driver in a File/usr/local/etc/X11/xorg.conf.d/driver-radeon.confSection "Device"
Identifier "Card0"
Driver "radeon"
EndSectionTo set the VESA driver in a
configuration file:Select VESA Video Driver in a
File/usr/local/etc/X11/xorg.conf.d/driver-vesa.confSection "Device"
Identifier "Card0"
Driver "vesa"
EndSectionTo set the scfb driver for use
with a UEFI or &arm; computer:Select scfb Video Driver in a
File/usr/local/etc/X11/xorg.conf.d/driver-scfb.confSection "Device"
Identifier "Card0"
Driver "scfb"
EndSectionMonitorsAlmost all monitors support the Extended Display
Identification Data standard (EDID).
&xorg; uses EDID
to communicate with the monitor and detect the supported
resolutions and refresh rates. Then it selects the most
appropriate combination of settings to use with that
monitor.Other resolutions supported by the monitor can be
chosen by setting the desired resolution in configuration
files, or after the X server has been started with
&man.xrandr.1;.Using &man.xrandr.1;Run &man.xrandr.1; without any parameters to see a
list of video outputs and detected monitor modes:&prompt.user; xrandr
Screen 0: minimum 320 x 200, current 3000 x 1920, maximum 8192 x 8192
DVI-0 connected primary 1920x1200+1080+0 (normal left inverted right x axis y axis) 495mm x 310mm
1920x1200 59.95*+
1600x1200 60.00
1280x1024 85.02 75.02 60.02
1280x960 60.00
1152x864 75.00
1024x768 85.00 75.08 70.07 60.00
832x624 74.55
800x600 75.00 60.32
640x480 75.00 60.00
720x400 70.08
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)This shows that the DVI-0 output
is being used to display a screen resolution of
1920x1200 pixels at a refresh rate of about 60 Hz.
Monitors are not attached to the
DisplayPort-0 and
HDMI-0 connectors.Any of the other display modes can be selected with
&man.xrandr.1;. For example, to switch to 1280x1024 at
60 Hz:&prompt.user; xrandr --mode 1280x1024 --rate 60A common task is using the external video output on
a notebook computer for a video projector.The type and quantity of output connectors varies
between devices, and the name given to each output
varies from driver to driver. What one driver calls
HDMI-1, another might call
HDMI1. So the first step is to run
&man.xrandr.1; to list all the available
outputs:&prompt.user; xrandr
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
1366x768 60.04*+
1024x768 60.00
800x600 60.32 56.25
640x480 59.94
VGA1 connected (normal left inverted right x axis y axis)
1280x1024 60.02 + 75.02
1280x960 60.00
1152x864 75.00
1024x768 75.08 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
640x480 75.00 72.81 66.67 60.00
720x400 70.08
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)Four outputs were found: the built-in panel
LVDS1, and external
VGA1, HDMI1, and
DP1 connectors.The projector has been connected to the
VGA1 output. &man.xrandr.1; is now
used to set that output to the native resolution of the
projector and add the additional space to the right side
of the desktop:&prompt.user; xrandr --output VGA1 --auto --right-of LVDS1--auto chooses the resolution and
refresh rate detected by EDID. If
the resolution is not correctly detected, a fixed value
can be given with --mode instead of
the --auto statement. For example,
most projectors can be used with a 1024x768 resolution,
which is set with
--mode 1024x768.&man.xrandr.1; is often run from
.xinitrc to set the appropriate
mode when X starts.Setting Monitor Resolution in a FileTo set a screen resolution of 1024x768 in a
configuration file:Set Screen Resolution in a File/usr/local/etc/X11/xorg.conf.d/screen-resolution.confSection "Screen"
Identifier "Screen0"
Device "Card0"
SubSection "Display"
Modes "1024x768"
EndSubSection
EndSectionThe few monitors that do not have
EDID can be configured by setting
HorizSync and
VertRefresh to the range of
frequencies supported by the monitor.Manually Setting Monitor Frequencies/usr/local/etc/X11/xorg.conf.d/monitor0-freq.confSection "Monitor"
Identifier "Monitor0"
HorizSync 30-83 # kHz
VertRefresh 50-76 # Hz
EndSectionInput DevicesKeyboardsKeyboard LayoutThe standardized location of keys on a keyboard
is called a layout. Layouts and
other adjustable parameters are listed in
&man.xkeyboard-config.7;.A United States layout is the default. To select
an alternate layout, set the
XkbLayout and
XkbVariant options in an
InputClass. This will be applied
to all input devices that match the class.This example selects a French keyboard layout with
the oss variant.Setting a Keyboard Layout/usr/local/etc/X11/xorg.conf.d/keyboard-fr-oss.confSection "InputClass"
Identifier "KeyboardDefaults"
Driver "keyboard"
MatchIsKeyboard "on"
Option "XkbLayout" "fr"
Option "XkbVariant" "oss"
EndSectionSetting Multiple Keyboard LayoutsSet United States, Spanish, and Ukrainian
keyboard layouts. Cycle through these layouts by
pressing
AltShift. x11/xxkb or
x11/sbxkb can be used for
improved layout switching control and
current layout indicators./usr/local/etc/X11/xorg.conf.d/kbd-layout-multi.confSection "InputClass"
Identifier "All Keyboards"
MatchIsKeyboard "yes"
Option "XkbLayout" "us, es, ua"
EndSectionClosing &xorg; From the
KeyboardX can be closed with a combination of keys.
By default, that key combination is not set because it
conflicts with keyboard commands for some
applications. Enabling this option requires changes
to the keyboard InputDevice
section:Enabling Keyboard Exit from X/usr/local/etc/X11/xorg.conf.d/keyboard-zap.confSection "InputClass"
Identifier "KeyboardDefaults"
Driver "keyboard"
MatchIsKeyboard "on"
Option "XkbOptions" "terminate:ctrl_alt_bksp"
EndSectionMice and Pointing DevicesMany mouse parameters can be adjusted with configuration
options. See &man.mousedrv.4x; for a full list.Mouse ButtonsThe number of buttons on a mouse can be set in the
mouse InputDevice section of
xorg.conf. To set the number of
buttons to 7:Setting the Number of Mouse Buttons/usr/local/etc/X11/xorg.conf.d/mouse0-buttons.confSection "InputDevice"
Identifier "Mouse0"
Option "Buttons" "7"
EndSectionManual ConfigurationIn some cases, &xorg;
autoconfiguration does not work with particular hardware, or a
different configuration is desired. For these cases, a custom
configuration file can be created.Do not create manual configuration files unless
required. Unnecessary manual configuration can prevent
proper operation.A configuration file can be generated by
&xorg; based on the detected
hardware. This file is often a useful starting point for
custom configurations.Generating an xorg.conf:&prompt.root; Xorg -configureThe configuration file is saved to
/root/xorg.conf.new. Make any changes
desired, then test that file with:&prompt.root; Xorg -config /root/xorg.conf.newAfter the new configuration has been adjusted and tested,
it can be split into smaller files in the normal location,
/usr/local/etc/X11/xorg.conf.d/.Using Fonts in &xorg;Type1 FontsThe default fonts that ship with
&xorg; are less than ideal for
typical desktop publishing applications. Large presentation
fonts show up jagged and unprofessional looking, and small
fonts are almost completely unintelligible. However, there
are several free, high quality Type1 (&postscript;) fonts
available which can be readily used with
&xorg;. For instance, the URW font
collection (x11-fonts/urwfonts) includes
high quality versions of standard type1 fonts (Times Roman, Helvetica, Palatino and others). The
Freefonts collection (x11-fonts/freefonts)
includes many more fonts, but most of them are intended for
use in graphics software such as the
Gimp, and are not complete enough
to serve as screen fonts. In addition,
&xorg; can be configured to use
&truetype; fonts with a minimum of effort. For more details
on this, see the &man.X.7; manual page or .To install the above Type1 font collections from binary packages,
run the following commands:&prompt.root; pkg install urwfontsAlternatively, to build from the Ports Collection, run the following
commands:&prompt.root; cd /usr/ports/x11-fonts/urwfonts
&prompt.root; make install cleanAnd likewise with the freefont or other collections. To
have the X server detect these fonts, add an appropriate line
to the X server configuration file
(/etc/X11/xorg.conf), which reads:FontPath "/usr/local/share/fonts/urwfonts/"Alternatively, at the command line in the X session
run:&prompt.user; xset fp+ /usr/local/share/fonts/urwfonts
&prompt.user; xset fp rehashThis will work but will be lost when the X session is
closed, unless it is added to the startup file
(~/.xinitrc for a normal
startx session, or
~/.xsession when logging in through a
graphical login manager like XDM).
A third way is to use the new
/usr/local/etc/fonts/local.conf as
demonstrated in .&truetype; FontsTrueType FontsfontsTrueType&xorg; has built in support for
rendering &truetype; fonts. There are two different modules
that can enable this functionality. The freetype module is
used in this example because it is more consistent with the
other font rendering back-ends. To enable the freetype module
just add the following line to the "Module"
section of /etc/X11/xorg.conf.Load "freetype"Now make a directory for the &truetype; fonts (for
example, /usr/local/share/fonts/TrueType)
and copy all of the &truetype; fonts into this directory.
Keep in mind that &truetype; fonts cannot be directly taken
from an &apple; &mac;; they must be in
&unix;/&ms-dos;/&windows; format for use by
&xorg;. Once the files have been
copied into this directory, use
mkfontdir to create a
fonts.dir, so that the X font renderer
knows that these new files have been installed.
mkfontdir can be installed as a
package:&prompt.root; pkg install mkfontdirThen create an index of X font files in a
directory:&prompt.root; cd /usr/local/share/fonts/TrueType
&prompt.root; mkfontdirNow add the &truetype; directory to the font path. This
is just the same as described in :&prompt.user; xset fp+ /usr/local/share/fonts/TrueType
&prompt.user; xset fp rehashor add a FontPath line to
xorg.conf.Now Gimp,
Apache OpenOffice, and all of the
other X applications should now recognize the installed
&truetype; fonts. Extremely small fonts (as with text in a
high resolution display on a web page) and extremely large
fonts (within &staroffice;) will
look much better now.Anti-Aliased Fontsanti-aliased fontsfontsanti-aliasedAll fonts in &xorg; that are
found in /usr/local/share/fonts/ and
~/.fonts/ are automatically made
available for anti-aliasing to Xft-aware applications. Most
recent applications are Xft-aware, including
KDE,
GNOME, and
Firefox.To control which fonts are anti-aliased, or to
configure anti-aliasing properties, create (or edit, if it
already exists) the file
/usr/local/etc/fonts/local.conf. Several
advanced features of the Xft font system can be tuned using
this file; this section describes only some simple
possibilities. For more details, please see
&man.fonts-conf.5;.XMLThis file must be in XML format. Pay careful attention to
case, and make sure all tags are properly closed. The file
begins with the usual XML header followed by a DOCTYPE
definition, and then the <fontconfig>
tag:<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>As previously stated, all fonts in
/usr/local/share/fonts/ as well as
~/.fonts/ are already made available to
Xft-aware applications. To add another directory
outside of these two directory trees, add a line like
this to
/usr/local/etc/fonts/local.conf:<dir>/path/to/my/fonts</dir>After adding new fonts, and especially new font
directories, rebuild
the font caches:&prompt.root; fc-cache -fAnti-aliasing makes borders slightly fuzzy, which makes
very small text more readable and removes
staircases from large text, but can cause
eyestrain if applied to normal text. To exclude font sizes
smaller than 14 point from anti-aliasing, include these
lines: <match target="font">
<test name="size" compare="less">
<double>14</double>
</test>
<edit name="antialias" mode="assign">
<bool>false</bool>
</edit>
</match>
<match target="font">
<test name="pixelsize" compare="less" qual="any">
<double>14</double>
</test>
<edit mode="assign" name="antialias">
<bool>false</bool>
</edit>
</match>fontsspacingSpacing for some monospaced fonts might also be
inappropriate with anti-aliasing. This seems to be an issue
with KDE, in particular. One
possible fix is to force the spacing for such fonts
to be 100. Add these lines: <match target="pattern" name="family">
<test qual="any" name="family">
<string>fixed</string>
</test>
<edit name="family" mode="assign">
<string>mono</string>
</edit>
</match>
<match target="pattern" name="family">
<test qual="any" name="family">
<string>console</string>
</test>
<edit name="family" mode="assign">
<string>mono</string>
</edit>
</match>(this aliases the other common names for fixed fonts as
"mono"), and then add: <match target="pattern" name="family">
<test qual="any" name="family">
<string>mono</string>
</test>
<edit name="spacing" mode="assign">
<int>100</int>
</edit>
</match> Certain fonts, such as Helvetica, may have a problem when
anti-aliased. Usually this manifests itself as a font that
seems cut in half vertically. At worst, it may cause
applications to crash. To avoid this, consider adding the
following to local.conf: <match target="pattern" name="family">
<test qual="any" name="family">
<string>Helvetica</string>
</test>
<edit name="family" mode="assign">
<string>sans-serif</string>
</edit>
</match> After editing
local.conf, make certain to end the file
with the </fontconfig> tag. Not
doing this will cause changes to be ignored.Users can add personalized settings by creating their own
~/.config/fontconfig/fonts.conf. This
file uses the same XML format described
above.LCD screenFontsLCD screenOne last point: with an LCD screen, sub-pixel sampling may
be desired. This basically treats the (horizontally
separated) red, green and blue components separately to
improve the horizontal resolution; the results can be
dramatic. To enable this, add the line somewhere in
local.conf: <match target="font">
<test qual="all" name="rgba">
<const>unknown</const>
</test>
<edit name="rgba" mode="assign">
<const>rgb</const>
</edit>
</match>Depending on the sort of display,
rgb may need to be changed to
bgr, vrgb or
vbgr: experiment and see which works
best.The X Display ManagerSethKingsleyContributed by X Display Manager&xorg; provides an X Display
Manager, XDM, which can be used for
login session management. XDM
provides a graphical interface for choosing which display server
to connect to and for entering authorization information such as
a login and password combination.This section demonstrates how to configure the X Display
Manager on &os;. Some desktop environments provide their own
graphical login manager. Refer to for instructions on how to configure
the GNOME Display Manager and for
instructions on how to configure the KDE Display Manager.Configuring XDMTo install XDM, use the
x11/xdm package or port. Once installed,
XDM can be configured to run when
the machine boots up by editing this entry in
/etc/ttys:ttyv8 "/usr/local/bin/xdm -nodaemon" xterm off secureChange the off to on
and save the edit. The ttyv8 in this entry
indicates that XDM will run on the
ninth virtual terminal.The XDM configuration directory
is located in /usr/local/lib/X11/xdm.
This directory contains several files used to change the
behavior and appearance of XDM, as
well as a few scripts and programs used to set up the desktop
when XDM is running. summarizes the function of each
of these files. The exact syntax and usage of these files is
described in &man.xdm.1;.
XDM Configuration FilesFileDescriptionXaccessThe protocol for connecting to
XDM is called the X Display
Manager Connection Protocol (XDMCP)
This file is a client authorization ruleset for
controlling XDMCP connections from
remote machines. By default, this file does not allow
any remote clients to connect.XresourcesThis file controls the look and feel of the
XDM display chooser and
login screens. The default configuration is a simple
rectangular login window with the hostname of the
machine displayed at the top in a large font and
Login: and Password:
prompts below. The format of this file is identical
to the app-defaults file described in the
&xorg;
documentation.XserversThe list of local and remote displays the chooser
should provide as login choices.XsessionDefault session script for logins which is run by
XDM after a user has logged
in. Normally each user will have a customized session
script in ~/.xsession that
overrides this scriptXsetup_*Script to automatically launch applications
before displaying the chooser or login interfaces.
There is a script for each display being used, named
Xsetup_*, where
* is the local display number.
Typically these scripts run one or two programs in the
background such as
xconsole.xdm-configGlobal configuration for all displays running
on this machine.xdm-errorsContains errors generated by the server program.
If a display that XDM is
trying to start hangs, look at this file for error
messages. These messages are also written to the
user's ~/.xsession-errors on a
per-session basis.xdm-pidThe running process ID of
XDM.
Configuring Remote AccessBy default, only users on the same system can login using
XDM. To enable users on other
systems to connect to the display server, edit the access
control rules and enable the connection listener.To configure XDM to listen for
any remote connection, comment out the
DisplayManager.requestPort line in
/usr/local/lib/X11/xdm/xdm-config by
putting a ! in front of it:! SECURITY: do not listen for XDMCP or Chooser requests
! Comment out this line if you want to manage X terminals with xdm
DisplayManager.requestPort: 0Save the edits and restart XDM.
To restrict remote access, look at the example entries in
/usr/local/lib/X11/xdm/Xaccess and refer
to &man.xdm.1; for further information.Desktop EnvironmentsValentinoVaschettoContributed by This section describes how to install three popular desktop
environments on a &os; system. A desktop environment can range
from a simple window manager to a complete suite of desktop
applications. Over a hundred desktop environments are available
in the x11-wm category of the Ports
Collection.GNOMEGNOMEGNOME is a user-friendly
desktop environment. It includes a panel for starting
applications and displaying status, a desktop, a set of tools
and applications, and a set of conventions that make it easy
for applications to cooperate and be consistent with each
other. More information regarding
GNOME on &os; can be found at http://www.FreeBSD.org/gnome.
That web site contains additional documentation about
installing, configuring, and managing
GNOME on &os;.This desktop environment can be installed from a
package:&prompt.root; pkg install gnome3To instead build GNOME from
ports, use the following command.
GNOME is a large application and
will take some time to compile, even on a fast
computer.&prompt.root; cd /usr/ports/x11/gnome3
&prompt.root; make install cleanGNOME
requires /proc to be mounted. Add this
line to /etc/fstab to mount this file
system automatically during system startup:proc /proc procfs rw 0 0GNOME uses
D-Bus and
HAL for a message bus and hardware
abstraction. These applications are automatically installed
as dependencies of GNOME. Enable
them in /etc/rc.conf so they will be
started when the system boots:dbus_enable="YES"
hald_enable="YES"After installation,
configure &xorg; to start
GNOME. The easiest way to do this
is to enable the GNOME Display Manager,
GDM, which is installed as part of
the GNOME package or port. It can
be enabled by adding this line to
/etc/rc.conf:gdm_enable="YES"It is often desirable to also start all
GNOME services. To achieve this,
add a second line to /etc/rc.conf:gnome_enable="YES"GDM will start
automatically when the system boots.A second method for starting
GNOME is to type
startx from the command-line after
configuring ~/.xinitrc. If this file
already exists, replace the line that starts the current
window manager with one that starts
/usr/local/bin/gnome-session. If this
file does not exist, create it with this command:&prompt.user; echo "exec /usr/local/bin/gnome-session" > ~/.xinitrcA third method is to use XDM as
the display manager. In this case, create an executable
~/.xsession:&prompt.user; echo "#!/bin/sh" > ~/.xsession
&prompt.user; echo "exec /usr/local/bin/gnome-session" >> ~/.xsession
&prompt.user; chmod +x ~/.xsessionKDEKDEKDE is another easy-to-use
desktop environment. This desktop provides a suite of
applications with a consistent look and feel, a standardized
menu and toolbars, keybindings, color-schemes,
internationalization, and a centralized, dialog-driven desktop
configuration. More information on
KDE can be found at http://www.kde.org/.
For &os;-specific information, consult http://freebsd.kde.org.To install the KDE package,
type:&prompt.root; pkg install x11/kde4To instead build the KDE port,
use the following command. Installing the port will provide a
menu for selecting which components to install.
KDE is a large application and will
take some time to compile, even on a fast computer.&prompt.root; cd /usr/ports/x11/kde4
&prompt.root; make install cleanKDEdisplay managerKDE requires
/proc to be mounted. Add this line to
/etc/fstab to mount this file system
automatically during system startup:proc /proc procfs rw 0 0KDE uses
D-Bus and
HAL for a message bus and hardware
abstraction. These applications are automatically installed
as dependencies of KDE. Enable
them in /etc/rc.conf so they will be
started when the system boots:dbus_enable="YES"
hald_enable="YES"The installation of KDE
includes the KDE Display Manager,
KDM. To enable this display
manager, add this line to
/etc/rc.conf:kdm4_enable="YES"A second method for launching
KDE is to type
startx from the command line. For this to
work, the following line is needed in
~/.xinitrc:exec /usr/local/bin/startkdeA third method for starting KDE
is through XDM. To do so, create
an executable ~/.xsession as
follows:&prompt.user; echo "#!/bin/sh" > ~/.xsession
&prompt.user; echo "exec /usr/local/bin/startkde" >> ~/.xsession
&prompt.user; chmod +x ~/.xsessionOnce KDE is started, refer to
its built-in help system for more information on how to use
its various menus and applications.XfceXfce is a desktop environment
based on the GTK+ toolkit used by
GNOME. However, it is more
lightweight and provides a simple, efficient, easy-to-use
desktop. It is fully configurable, has a main panel with
menus, applets, and application launchers, provides a file
manager and sound manager, and is themeable. Since it is
fast, light, and efficient, it is ideal for older or slower
machines with memory limitations. More information on
Xfce can be found at http://www.xfce.org.To install the Xfce
package:&prompt.root; pkg install xfceAlternatively, to build the port:&prompt.root; cd /usr/ports/x11-wm/xfce4
&prompt.root; make install cleanUnlike GNOME or
KDE,
Xfce does not provide its own login
manager. In order to start Xfce
from the command line by typing startx,
first add its entry to ~/.xinitrc:&prompt.user; echo "exec /usr/local/bin/startxfce4 --with-ck-launch" > ~/.xinitrcAn alternate method is to use
XDM. To configure this method,
create an executable ~/.xsession:&prompt.user; echo "#!/bin/sh" > ~/.xsession
&prompt.user; echo "exec /usr/local/bin/startxfce4 --with-ck-launch" >> ~/.xsession
&prompt.user; chmod +x ~/.xsessionInstalling Compiz FusionOne way to make using a desktop
computer more pleasant is with nice 3D effects.Installing the Compiz Fusion
package is easy, but configuring it requires a few steps that
are not described in the port's documentation.Setting up the &os; nVidia DriverDesktop effects can cause quite a load on the graphics
card. For an nVidia-based graphics card, the proprietary
driver is required for good performance. Users of other
graphics cards can skip this section and continue with the
xorg.conf configuration.To determine which nVidia driver is needed see the FAQ question
on the subject.Having determined the correct driver to use for your card,
installation is as simple as installing any other
package.For example, to install the latest driver:&prompt.root; pkg install x11/nvidia-driverThe driver will create a kernel module, which needs to be
loaded at system startup. Add the following line to
/boot/loader.conf:nvidia_load="YES"To immediately load the kernel module into the running
kernel by issuing a command like kldload
nvidia, however it has been noted that the some
versions of &xorg; will not
function properly if the driver is not loaded at boot time.
After editing /boot/loader.conf, a
reboot is recommended.With the kernel module loaded, you normally only need to
change a single line in xorg.conf
to enable the proprietary driver:Find the following line in
/etc/X11/xorg.conf:Driver "nv"and change it to:Driver "nvidia"Start the GUI as usual, and you should be greeted by the
nVidia splash. Everything should work as usual.Configuring xorg.conf for Desktop EffectsTo enable Compiz Fusion,
/etc/X11/xorg.conf needs to be
modified:Add the following section to enable composite
effects:Section "Extensions"
Option "Composite" "Enable"
EndSectionLocate the Screen section which should look
similar to the one below:Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
...and add the following two lines (after
Monitor will do):DefaultDepth 24
Option "AddARGBGLXVisuals" "True"Locate the Subsection that refers to the
screen resolution that you wish to use. For example, if you
wish to use 1280x1024, locate the section that follows. If
the desired resolution does not appear in any subsection, you
may add the relevant entry by hand:SubSection "Display"
Viewport 0 0
Modes "1280x1024"
EndSubSectionA color depth of 24 bits is needed for desktop
composition, change the above subsection to:SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
EndSubSectionFinally, confirm that the glx and
extmod modules are loaded in the
Module section:Section "Module"
Load "extmod"
Load "glx"
...The preceding can be done automatically with
x11/nvidia-xconfig by running (as
root):&prompt.root; nvidia-xconfig --add-argb-glx-visuals
&prompt.root; nvidia-xconfig --composite
&prompt.root; nvidia-xconfig --depth=24Installing and Configuring Compiz FusionInstalling Compiz Fusion
is as simple as any other package:&prompt.root; pkg install x11-wm/compiz-fusionWhen the installation is finished, start your graphic
desktop and at a terminal, enter the following commands (as a
normal user):&prompt.user; compiz --replace --sm-disable --ignore-desktop-hints ccp &
&prompt.user; emerald --replace &Your screen will flicker for a few seconds, as your window
manager (e.g. Metacity if you are
using GNOME) is replaced by
Compiz Fusion.
Emerald takes care of the window
decorations (i.e. close, minimize, maximize buttons, title
bars and so on).You may convert this to a trivial script and have it run
at startup automatically (e.g. by adding to
Sessions in a GNOME
desktop):#! /bin/sh
compiz --replace --sm-disable --ignore-desktop-hints ccp &
emerald --replace &Save this in your home directory as, for example,
start-compiz and make it
executable:&prompt.user; chmod +x ~/start-compizThen use the GUI to add it to Startup
Programs (located in
System,
Preferences,
Sessions on a
GNOME desktop).To actually select all the desired effects and their
settings, execute (again as a normal user) the
Compiz Config Settings Manager:&prompt.user; ccsmIn GNOME, this can also be
found in the System,
Preferences menu.If you have selected gconf support during
the build, you will also be able to view these settings using
gconf-editor under
apps/compiz.TroubleshootingIf the mouse does not work, you will need to first configure
it before proceeding.
In recent Xorg
versions, the InputDevice sections in
xorg.conf are ignored in favor of the
autodetected devices. To restore the old behavior, add the
following line to the ServerLayout or
ServerFlags section of this file:Option "AutoAddDevices" "false"Input devices may then be configured as in previous
versions, along with any other options needed (e.g., keyboard
layout switching).As previously explained the
hald daemon will, by default,
automatically detect your keyboard. There are chances that
your keyboard layout or model will not be correct, desktop
environments like GNOME,
KDE or
Xfce provide tools to configure
the keyboard. However, it is possible to set the keyboard
properties directly either with the help of the
&man.setxkbmap.1; utility or with a
hald's configuration rule.For example if, one wants to use a PC 102 keys keyboard
coming with a french layout, we have to create a keyboard
configuration file for hald
called x11-input.fdi and saved in the
/usr/local/etc/hal/fdi/policy
directory. This file should contain the following
lines:<?xml version="1.0" encoding="iso-8859-1"?>
<deviceinfo version="0.2">
<device>
<match key="info.capabilities" contains="input.keyboard">
<merge key="input.x11_options.XkbModel" type="string">pc102</merge>
<merge key="input.x11_options.XkbLayout" type="string">fr</merge>
</match>
</device>
</deviceinfo>If this file already exists, just copy and add to your
file the lines regarding the keyboard configuration.You will have to reboot your machine to force
hald to read this file.It is possible to do the same configuration from an X
terminal or a script with this command line:&prompt.user; setxkbmap -model pc102 -layout fr/usr/local/share/X11/xkb/rules/base.lst
lists the various keyboard, layouts and options
available.&xorg;
tuningThe xorg.conf.new configuration file
may now be tuned to taste. Open the file in a text editor
such as &man.emacs.1; or &man.ee.1;. If the monitor is an
older or unusual model that does not support autodetection of
sync frequencies, those settings can be added to
xorg.conf.new under the
"Monitor" section:Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
HorizSync 30-107
VertRefresh 48-120
EndSectionMost monitors support sync frequency autodetection, making
manual entry of these values unnecessary. For the few
monitors that do not support autodetection, avoid potential
damage by only entering values provided by the
manufacturer.X allows DPMS (Energy Star) features to be used with
capable monitors. The &man.xset.1; program controls the
time-outs and can force standby, suspend, or off modes. If
you wish to enable DPMS features for your monitor, you must
add the following line to the monitor section:Option "DPMS"xorg.confWhile the xorg.conf.new configuration
file is still open in an editor, select the default resolution
and color depth desired. This is defined in the
"Screen" section:Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1024x768"
EndSubSection
EndSectionThe DefaultDepth keyword describes the
color depth to run at by default. This can be overridden with
the command line switch to
&man.Xorg.1;. The Modes keyword describes
the resolution to run at for the given color depth. Note that
only VESA standard modes are supported as defined by the
target system's graphics hardware. In the example above, the
default color depth is twenty-four bits per pixel. At this
color depth, the accepted resolution is 1024 by 768
pixels.Finally, write the configuration file and test it using
the test mode given above.One of the tools available to assist you during
troubleshooting process are the
&xorg; log files, which contain
information on each device that the
&xorg; server attaches to.
&xorg; log file names are in the
format of /var/log/Xorg.0.log. The
exact name of the log can vary from
Xorg.0.log to
Xorg.8.log and so forth.If all is well, the configuration file needs to be
installed in a common location where &man.Xorg.1; can find it.
This is typically /etc/X11/xorg.conf or
/usr/local/etc/X11/xorg.conf.&prompt.root; cp xorg.conf.new /etc/X11/xorg.confThe &xorg; configuration
process is now complete. &xorg;
may be now started with the &man.startx.1; utility. The
&xorg; server may also be started
with the use of &man.xdm.1;.Configuration with &intel; i810
Graphics ChipsetsIntel i810 graphic chipsetConfiguration with &intel; i810 integrated chipsets
requires the agpgart AGP programming
interface for &xorg; to drive the
card. See the &man.agp.4; driver manual page for more
information.This will allow configuration of the hardware as any
other graphics board. Note on systems without the
&man.agp.4; driver compiled in the kernel, trying to load
the module with &man.kldload.8; will not work. This driver
has to be in the kernel at boot time through being compiled
in or using /boot/loader.conf.Adding a Widescreen Flatpanel to the Mixwidescreen flatpanel configurationThis section assumes a bit of advanced configuration
knowledge. If attempts to use the standard configuration
tools above have not resulted in a working configuration,
there is information enough in the log files to be of use in
getting the setup working. Use of a text editor will be
necessary.Current widescreen (WSXGA, WSXGA+, WUXGA, WXGA, WXGA+,
et.al.) formats support 16:10 and 10:9 formats or aspect
ratios that can be problematic. Examples of some common
screen resolutions for 16:10 aspect ratios are:2560x16001920x12001680x10501440x9001280x800At some point, it will be as easy as adding one of these
resolutions as a possible Mode in the
Section "Screen" as such:Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1680x1050"
EndSubSection
EndSection&xorg; is smart enough to
pull the resolution information from the widescreen via
I2C/DDC information so it knows what the monitor can handle
as far as frequencies and resolutions.If those ModeLines do not exist in
the drivers, one might need to give
&xorg; a little hint. Using
/var/log/Xorg.0.log one can extract
enough information to manually create a
ModeLine that will work. Simply look for
information resembling this:(II) MGA(0): Supported additional Video Mode:
(II) MGA(0): clock: 146.2 MHz Image Size: 433 x 271 mm
(II) MGA(0): h_active: 1680 h_sync: 1784 h_sync_end 1960 h_blank_end 2240 h_border: 0
(II) MGA(0): v_active: 1050 v_sync: 1053 v_sync_end 1059 v_blanking: 1089 v_border: 0
(II) MGA(0): Ranges: V min: 48 V max: 85 Hz, H min: 30 H max: 94 kHz, PixClock max 170 MHzThis information is called EDID information. Creating a
ModeLine from this is just a matter of
putting the numbers in the correct order:ModeLine <name> <clock> <4 horiz. timings> <4 vert. timings>So that the ModeLine in
Section "Monitor" for this example would
look like this:Section "Monitor"
Identifier "Monitor1"
VendorName "Bigname"
ModelName "BestModel"
ModeLine "1680x1050" 146.2 1680 1784 1960 2240 1050 1053 1059 1089
Option "DPMS"
EndSectionNow having completed these simple editing steps, X
should start on your new widescreen monitor.Troubleshooting Compiz FusionI have installed
Compiz Fusion, and
after running the commands you mention, my windows are
left without title bars and buttons. What is
wrong?You are probably missing a setting in
/etc/X11/xorg.conf. Review this
file carefully and check especially the
DefaultDepth and
AddARGBGLXVisuals
directives.When I run the command to start
Compiz Fusion, the X
server crashes and I am back at the console. What is
wrong?If you check
/var/log/Xorg.0.log, you
will probably find error messages during the X
startup. The most common would be:(EE) NVIDIA(0): Failed to initialize the GLX module; please check in your X
(EE) NVIDIA(0): log file that the GLX module has been loaded in your X
(EE) NVIDIA(0): server, and that the module is the NVIDIA GLX module. If
(EE) NVIDIA(0): you continue to encounter problems, Please try
(EE) NVIDIA(0): reinstalling the NVIDIA driver.This is usually the case when you upgrade
&xorg;. You will need to
reinstall the x11/nvidia-driver
package so glx is built again.