Comment 94 for bug 195051

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revanb (revanb) wrote : Re: X freezes in drmCommandWrite() when Compiz is enabled on ATI Radeon Mobility 9600

I have exactly the same problem as billythegates describes. (see qoute below)

I found that when I uninstall the fglrx driver (by unselecting it in the proprientary hardware drivers dialog) then the default driver is better. It unfortunately still freezes occasionally...I hope this mobility radeon bug can be fixed soon.

I have a LG LM50a notebook with a Mobility Radeon 9600.

Qouting Billythegates:
"
I've got a similar problem with my almost identical ThinkPad T42 / Mobility Radeon 9600 chip.
Well, with the latest version of the fglrx driver compiz runs perfectly well and the machine is also able to suspend properly. But however, when I try to resume - with compiz previously enabled - I a get a grey and somewhat speckled slim bar on the lower right of the screen with some artifacts around the mouse cursor. The mouse can be moved but nothing else will work - compiz desktop will just not awake a second time!
When I previously disable compiz and then set my machine in suspend mode, this grey bar shows up as well, but only for a couple of milliseconds and then the desktop appears to start normally.
There is another problem, I don't know if it is related to this one: when I log-off and try to lag back on (with compiz enabled) X freezes totally and the only thing I can do is a hard reboot! This happens every time I try to start X for a second time.
I can provide you with more information - configuration files and logs - just say what you need and where I can find it!
"