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[Bug 1232343] [NEW] XMir Screen flickering when running steam or SDL games

 

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Up until last week most of my steam catalogue was running well under
xmir, now a terrible screen flickering occurs when launching any steam
or SDL game.  The screen flickers in intesity multiple times per second
and does so dramatically as if going from full brightness to full dim.
I can find no errors in the logs.

grep -i xmir /var/log/Xorg.0.log
[ 22424.891] (II) "xmir" will be loaded by default.
[ 22424.893] (II) LoadModule: "xmir"
[ 22424.893] (II) Loading /usr/lib/xorg/modules/extensions/libxmir.so
[ 22424.916] (II) Module xmir: vendor="X.Org Foundation"
[ 22425.186] (II) [XMir] Handling focus event, new_focus = TRUE

I am using a System 76 Lemur Ultra I7 with intel HD4000 graphics and an
up to date 13.10 installation.

** Affects: xorg-server (Ubuntu)
     Importance: High
     Assignee: Robert Carr (robertcarr)
         Status: New

** Affects: libsdl2 (Ubuntu)
     Importance: Undecided
     Assignee: Brandon Schaefer (brandontschaefer)
         Status: Invalid

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XMir Screen flickering when running steam or SDL games
https://bugs.launchpad.net/bugs/1232343
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