Forcing Xorg to ignore the secondary VGA monitor on the mainboard seems
so far to solve the problem. Applied testing method: running glxgears in
full screen for 2 days. See the attachment called
xorg.conf.disable_VGA_works
** Attachment added: xorg.conf.disable_VGA_works
Public bug reported:
OpenGL applications started in full screen mode freeze after a couple,
mostly within 5 minutes of running, rarely after hours.
With my configuration, the bug is easily reproducible, especially with kernel
version linux-image-3.8.0-44-generic (3.8.0-44.66~precise1), the
** Attachment added: dmesg-boot.txt
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1364867/+attachment/4194152/+files/dmesg-boot.txt
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https://bugs.launchpad.net/bugs/1364867
** Attachment added: dmidecode.txt
https://bugs.launchpad.net/bugs/1364867/+attachment/4194156/+files/dmidecode.txt
** Attachment added: glxinfo.txt
https://bugs.launchpad.net/bugs/1364867/+attachment/4194157/+files/glxinfo.txt
** Attachment added: dpkg-l.txt
** Description changed:
OpenGL applications started in full screen mode freeze after a couple,
mostly within 5 minutes of running, rarely after hours.
With my configuration, the bug is easily reproducible, especially with kernel
version linux-image-3.8.0-44-generic