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0e1f616
(Get the code!)
copied over from a duplicate:
This is the same bug I reported earlier as the white screen of death:
https:/
In that report, I speculated that it might be Firefox-related, but now I'm pretty certain that it is not related to Firefox, but is most visible there because that's the main application I use on the afflicted machine.
The crash usually results in a totally white screen, though I have seen at least one case of a bar code like pattern in the lower right, and one case where the entire display was striped with various colors. In every case the machine is completely hosed. There is nothing to be done but cut the power and reboot. Near as I can recall, the fan is always running when it is in that state. I hope that is not symptomatic of any thermal problem or related to the crash, but at least the machine hasn't started smoking (yet).
I have not been able to find any particular stimulus that makes the crash reproducible. However, I am fairly sure it is related to mouse movements and that the crash can only happen when the mouse is moving. The visible display (of the white screen) may be related to a driver conflict, but that's also kind of speculative. However, I strongly suspect the problem is related to window-focus problems the machine exhibits pretty often. These are normally recoverable events, but I suspect the crash is a case when the same root problem is not caught at the recoverable condition, but just goes all the way to death.
The frequency of the crash is around once per day, though sometimes I won't see it for several days, and other days there may be two of them. I don't recall seeing more than two in a short period, but it's already to the point where I feel I can't rely on the machine for any serious work in Linux--it can crash at any time.
As noted in the other bug report, I'm looking for any kind of diagnostic data or some way to make the bug reproducible.
The afflicted machine is my only Sharp running Linux, and is also the only one with an AMD CPU. Various other distinctions, including a TV tuner (which I'm not trying to use from the Linux side).