[X2Go-Commits] [live-build-x2go] 24/26: improved code to fix blank screen happening with DisplayPort and some buggy TFTs (xset q reports "Monitor is on" even though it is pitch black) - fifth attempt

git-admin at x2go.org git-admin at x2go.org
Wed Jan 24 18:31:49 CET 2018


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x2go pushed a commit to branch feature/openbox-stretch
in repository live-build-x2go.

commit 2d36030a1e693931dd0b9ecc5f4e12cd96258ae6
Author: Stefan Baur (BAUR-ITCS) <kontakt at baur-itcs.de>
Date:   Wed Jan 17 06:37:01 2018 +0100

    improved code to fix blank screen happening with DisplayPort and some buggy TFTs (xset q reports "Monitor is on" even though it is pitch black) - fifth attempt
---
 .../lib/live/config/2900-x2go-thinclientconfig          | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/config/includes.chroot/lib/live/config/2900-x2go-thinclientconfig b/config/includes.chroot/lib/live/config/2900-x2go-thinclientconfig
index 50aa813..e7af115 100755
--- a/config/includes.chroot/lib/live/config/2900-x2go-thinclientconfig
+++ b/config/includes.chroot/lib/live/config/2900-x2go-thinclientconfig
@@ -37,6 +37,14 @@ cat >/home/user/.xsession <<XSESSION
 # Spawn PulseAudio
 pulseaudio -D -n -L 'module-native-protocol-tcp port=4713' -L 'module-udev-detect' --exit-idle-time=65535 &
 
+# code to fix blank screen happening with DisplayPort and some buggy TFTs (xset q reports "Monitor is on" even though it is pitch black)
+if grep -q '\W*blankdpmsfix\W*' /proc/cmdline; then
+	for DISPLAYNAME in \$(xrandr | awk '\$2 == "connected" { print \$1 }') ; do
+		xrandr --output \$DISPLAYNAME --off
+		xrandr --output \$DISPLAYNAME --auto
+	done
+fi
+
 # additional variable instead of "case \$(...) in", as we need the value again later on
 XRANDRCMDTAINTED=\$(sed -e 's/ \([^ ]*\)=/\n\1=/g' -e 's/\([^=]["'"'"']\) /\1\n/g' -e 's/ \([^ "'"'"']\)/\n\1/g' /proc/cmdline | awk -F '=' '\$1 == "xinerama" { print \$2 }')
 
@@ -101,15 +109,6 @@ fi
 openbox &
 echo -en "\n\$(date +'%F | %T | ')'\$0' spawned OpenBox." | tee -a /dev/tty8
 
-# code to fix blank screen happening with DisplayPort and some buggy TFTs (xset q reports "Monitor is on" even though it is pitch black)
-if grep -q '\W*blankdpmsfix\W*' /proc/cmdline; then
-	CURRENTRES=\$(xrandr | awk '\$0 ~/\*/ { print \$1}') # determine current resolution
-	xrandr -s 800x600 # set low resolution to trigger TFT wakeup
-	while ! [ "\$(xrandr | awk '\$0 ~/\*/ { print \$1}')" = "\$CURRENTRES" ] ; do
-        	xrandr -s \$CURRENTRES # restore original resolution
-	done
-fi
-
 # set screen background to X2Go default blue on all detected screens
 xsetroot -solid "#246ed8"
 

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