From 82901d366a7c6bfa4d4b7510f292abccc58b33d6 Mon Sep 17 00:00:00 2001
From: Ken Moore <moorekou@gmail.com>
Date: Wed, 6 May 2020 16:03:47 -0400
Subject: Ensure that the xorg DPMS system is only enabled when the screensaver
 comes on. It does not seem to have the same input/activity checks that the
 screensaver uses

---
 src-qt5/core/libLumina/LuminaX11.cpp                         | 12 ++++++++++++
 src-qt5/core/libLumina/LuminaX11.h                           |  3 +++
 src-qt5/core/libLumina/LuminaX11.pri                         |  2 +-
 src-qt5/core/lumina-desktop/src-screensaver/LScreenSaver.cpp |  3 +++
 4 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/src-qt5/core/libLumina/LuminaX11.cpp b/src-qt5/core/libLumina/LuminaX11.cpp
index 3262e16d..6a71f629 100644
--- a/src-qt5/core/libLumina/LuminaX11.cpp
+++ b/src-qt5/core/libLumina/LuminaX11.cpp
@@ -27,6 +27,7 @@
 #include <xcb/xcb_aux.h>
 #include <xcb/composite.h>
 #include <xcb/damage.h>
+#include <xcb/dpms.h>
 
 //XLib includes
 #include <X11/extensions/Xdamage.h>
@@ -184,6 +185,17 @@ void LXCB::SetCurrentWorkspace(int number){
   xcb_ewmh_request_change_showing_desktop(&EWMH, QX11Info::appScreen(), number);
 }
 
+//Display Power Management System (DPMS)
+// ===== enableDPMS() =====
+void LXCB::enableDPMS(){
+  xcb_dpms_enable(QX11Info::connection());
+}
+
+// ===== disableDPMS() =====
+void LXCB::disableDPMS(){
+  xcb_dpms_disable(QX11Info::connection());
+}
+
 // === WindowClass() ===
 QString LXCB::WindowClass(WId win){
   if(DEBUG){ qDebug() << "XCB: WindowClass()" << win; }
diff --git a/src-qt5/core/libLumina/LuminaX11.h b/src-qt5/core/libLumina/LuminaX11.h
index 02897aee..a2c0c58a 100644
--- a/src-qt5/core/libLumina/LuminaX11.h
+++ b/src-qt5/core/libLumina/LuminaX11.h
@@ -123,6 +123,9 @@ public:
 	bool CheckDisableXinerama(); //returns true if Xinerama was initially set but now disabled
 	void RegisterVirtualRoots(QList<WId> roots);
 	void SetCurrentWorkspace(int);
+	//Display Power Management System (DPMS)
+	void enableDPMS();
+	void disableDPMS();
 
 	//Window Information
 	QString WindowClass(WId);
diff --git a/src-qt5/core/libLumina/LuminaX11.pri b/src-qt5/core/libLumina/LuminaX11.pri
index 0e472dd4..e22b83ad 100644
--- a/src-qt5/core/libLumina/LuminaX11.pri
+++ b/src-qt5/core/libLumina/LuminaX11.pri
@@ -1,7 +1,7 @@
 
 QT *= x11extras
 
-LIBS *= -lc -lxcb -lxcb-ewmh -lxcb-icccm -lxcb-image -lxcb-composite -lxcb-damage -lxcb-util -lXdamage 
+LIBS *= -lc -lxcb -lxcb-ewmh -lxcb-icccm -lxcb-image -lxcb-composite -lxcb-damage -lxcb-util -lxcb-dpms -lXdamage 
 
 #LUtils Files
 SOURCES *= $${PWD}/LuminaX11.cpp
diff --git a/src-qt5/core/lumina-desktop/src-screensaver/LScreenSaver.cpp b/src-qt5/core/lumina-desktop/src-screensaver/LScreenSaver.cpp
index 850f14b4..6ccd8420 100644
--- a/src-qt5/core/lumina-desktop/src-screensaver/LScreenSaver.cpp
+++ b/src-qt5/core/lumina-desktop/src-screensaver/LScreenSaver.cpp
@@ -66,6 +66,7 @@ void LScreenSaver::UpdateTimers(){
 // ===========
 void LScreenSaver::start(){
   reloadSettings(); //setup all the initial time frames
+  LSession::handle()->XCB->disableDPMS(); //disable this initially - this only gets turned on when the screensaver activates
   starttimer->start();
   checkTimer->start();
 }
@@ -128,6 +129,7 @@ void LScreenSaver::ShowScreenSaver(){
   //QApplication::setOverrideCursor(QCursor::BlankCursor);
   SSRunning = true;
   updating = true;
+  LSession::handle()->XCB->enableDPMS();
   //Now remove any current Base widgets (prevent any lingering painting between sessions)
   for(int i=0; i<BASES.length(); i++){
     if(DEBUG){ qDebug() << " - Removing SS Base"; }
@@ -183,6 +185,7 @@ void LScreenSaver::HideScreenSaver(){
   //QApplication::restoreOverrideCursor();
   if(DEBUG){ qDebug() << "Hiding Screen Saver:" << QDateTime::currentDateTime().toString(); }
   SSRunning = false;
+  LSession::handle()->XCB->disableDPMS();
   //if(cBright>0){ LOS::setScreenBrightness(cBright); } //return to current brightness
   this->releaseKeyboard();
   if(!SSLocked){
-- 
cgit