KASM-1851 Disable Screensaver

- Utilize xinitrc scripts to disbale X screensaver
- Utilize colordepth env var instead of hardcoded value

src/common/startup_scripts/vnc_startup.sh

@@ -57,7 +57,7 @@ function start_kasmvnc (){
 
     rm -rf $HOME/.vnc/*.pid
 
-	vncserver $DISPLAY -depth 24 -geometry $VNC_RESOLUTION -websocketPort $NO_VNC_PORT -cert ${HOME}/.vnc/self.pem -httpd ${KASM_VNC_PATH}/www -sslOnly -FrameRate=$MAX_FRAME_RATE -interface 0.0.0.0 $VNCOPTIONS
+	vncserver $DISPLAY -depth $VNC_COL_DEPTH -geometry $VNC_RESOLUTION -websocketPort $NO_VNC_PORT -cert ${HOME}/.vnc/self.pem -httpd ${KASM_VNC_PATH}/www -sslOnly -FrameRate=$MAX_FRAME_RATE -interface 0.0.0.0 $VNCOPTIONS
 
 	KASM_PROCS['kasmvnc']=$(cat $HOME/.vnc/*${DISPLAY_NUM}.pid)
 

src/common/xfce/window_manager_startup.sh

@@ -3,11 +3,6 @@ set -e
 
 echo -e "\n------------------ Xfce4 window manager startup------------------"
 
-### disable screen saver and power management
-xset -dpms &
-xset s noblank &
-xset s off &
-
 if [ "${START_XFCE4}" == "1" ] ;
     then
         echo "Starting XFCE"

src/ubuntu/install/xfce/install_xfce_ui.sh

@@ -14,6 +14,32 @@ get_rid_of_xfce_battery_widget() {
   yum remove -y xfce4-power-manager
 }
 
+config_xinit_disable_screensaver() {
+  mkdir -p /etc/X11/xinit/xinitrc.d/
+  cat >/etc/X11/xinit/xinitrc.d/disable_screensaver.sh <<EOL
+#!/bin/sh
+set -x
+xset -dpms
+xset s off
+xset q
+EOL
+
+chmod +x /etc/X11/xinit/xinitrc.d/disable_screensaver.sh
+}
+
+replace_default_xinit() {
+
+  cat >/etc/X11/xinit/xinitrc <<EOL
+#!/bin/sh
+for file in /etc/X11/xinit/xinitrc.d/* ; do
+        . \$file
+done
+. /etc/X11/Xsession
+EOL
+
+chmod +x /etc/X11/xinit/xinitrc
+}
+
 echo "Install Xfce4 UI components"
 if [ "$DISTRO" != "centos" ]; then
   apt-get update
@@ -43,6 +69,14 @@ else
   apt-get clean -y
 fi
 
+
+if [ "$DISTRO" = "centos" ]; then
+  config_xinit_disable_screensaver
+else
+  replace_default_xinit
+  config_xinit_disable_screensaver
+fi
+
 # Override default login script so users cant log themselves out of the desktop dession
 cat >/usr/bin/xfce4-session-logout <<EOL
 #!/usr/bin/env bash
@@ -72,4 +106,4 @@ cat >>/etc/xdg/Thunar/accels.scm<<EOL
 (gtk_accel_path "<Actions>/ThunarLauncher/delete" "Delete")
 (gtk_accel_path "<Actions>/ThunarLauncher/trash-delete-2" "")
 (gtk_accel_path "<Actions>/ThunarLauncher/trash-delete" "")
-EOL
+EOL