Public bug reported:
I am running unity system compositor on my desktop in dual screen mode
with Intel HD 2500 graphics.
When I play video, even when it's halted and the media player window
(vlc and mplayer) is on another work place, the screen flickers black.
I was able to find the following messages in /var/log/Xorg.0.log:
[ 8967.357] (II) Setting DPMS mode for output 1 to 0
[ 8967.884] (II) Setting DPMS mode for output 3 to 0
[ 8972.730] (II) Setting DPMS mode for output 1 to 0
Watching the file with tail -f gives one or two new lines of these
messages after each flicker.
I experience this only on my desktop in dual screen mode, not on my
laptop that also uses Intel graphics (HD 4000) and is currently running
saucy.
** Affects: unity-system-compositor (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "Xorg.0.log"
https://bugs.launchpad.net/bugs/1238886/+attachment/3874928/+files/Xorg.0.log
** Description changed:
I am running unity system compositor on my desktop in dual screen mode
with Intel HD 2500 graphics.
When I play video, even when it's halted and the media player window
(vlc and mplayer) is on another work place, the screen flickers black.
I was able to find the following messages in /var/log/Xorg.0.log:
[ 8967.357] (II) Setting DPMS mode for output 1 to 0
[ 8967.884] (II) Setting DPMS mode for output 3 to 0
[ 8972.730] (II) Setting DPMS mode for output 1 to 0
Watching the file with tail -f gives one or two new lines of these
messages after each flicker.
+
+ I experience this only on my desktop in dual screen mode, not on my
+ laptop that also uses Intel graphics (HD 4000) and is currently running
+ saucy.
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https://bugs.launchpad.net/bugs/1238886
Title:
Screen flickers black during video playback on Intel graphics in dual
screen mode
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