endless GPU lockups on "ATI Radeon HD 5450" (ChipID = 0x68f9)

[Marat N.Afanasyev]

Marat N.Afanasyev wrote:
> I had about ten minutes of video flickering without restoring image
> before reboot about half an our ago:
>
> Apr 19 13:35:11 zealot kernel: drmn0: error: GPU lockup CP stall for
> more than 10000msec
> ...
> Apr 19 13:35:21 zealot kernel: drmn0: info:   R_008680_CP_STAT = 0x00000000
> Apr 19 13:35:21 zealot kernel: drmn0: info: GPU reset succeeded, trying
> to resume
>
> and such lockups appear somewhat regularly, last time image was restored
> and my desktop worked fine for two or three hours before deadlock
> occured and I had to reset it.
>
> I wonder if 4550 will work more stable? I have one somewhere
>

nope, same behaviour on 4550 as well. I suppose it's triggered somehow 
by switching workspaces

-- 
SY, Marat

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