Comment 26 for bug 445056
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#26 |
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0e1f616
(Get the code!)
This problem has reached a reasonable amount of people and at least 6 bugs have been reported on Launchpad:
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Steps to reproduce the problem:
1. Just start a session on a newly installed system.
After a few seconds, the X server freezes. When you try to restart it with "Alt + SysRq + E", it starts and freezes soon after.
The mouse and the keyboard does not respond. Only when the whole system is restarted, it becomes usable.
With the default driver (pre-compiled, which is in the repository), the problem seems to happen "randomly".
But it seems that this problem is related to transparency. I think this is because when a tool tip disappears (with an effect of translucency), the X server freezes.
This hypothesis gained strength when I tried to compile a driver and, when tested, the images simply do not have transparency: where would be transparent, was black. And yes, the problem persisted.
Even trying to debug the freeze, no useful log was obtained by any of the users.
In the link posted by the reporter of the bug there are some useful files (logs, etc.) that can help. But the problem seems to be related to the memory address of the video card. Attached is a small table with information from different video cards.