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

[Marat N.Afanasyev]

Jean-Sébastien Pédron wrote:
> On 21.04.2014 09:31, Marat N.Afanasyev wrote:
>> nope, same behaviour on 4550 as well. I suppose it's triggered somehow
>> by switching workspaces
>
> Could you please post your dmesg and tell us what softwares you use
> (desktop environment, maybe the application(s) you run when this happens)?
>

usually I use windowmaker, pidgin, xchat, transmission, seamonkey, 
libreoffice and a lot of xterms. GPU lockups appear out of the blue and 
if first lockup gives me somehow responding machine, I can log in using 
ssh from my tablet and reboot it, second one after reset gives me a hard 
lock, desktop locks up completely.

Card was suspiciously hot when it hung last time, so I've placed an 
additional fan to blow onto its radiator, so far so good. We do need 
working power management with kms drivers ;)

-- 
SY, Marat

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