Public bug reported:
At random, if I'm using ANY 3D program or game (except, strangely,
window managers, including compiz, gala, mutter, etc)... the GPU will
lockup, the screen redraws with a bunch of lines at the bottom, and then
it begins to turn white. I wish I could give more information but each
time it happens the system locks up completely and I have to force it to
restart (which is NOT good). This problem was happening on Ubuntu 12.10
and persists into 13.04.
** Affects: xserver-xorg-video-ati (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1091058
Title:
GPU locks up and the screen turns white - it is impossible then to
recovery (have to cold reboot!!!)
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