random X freeze with latest ati driver

[f0x_]

I have this problem too.
Random X freeze but only with Desktop Effects enabled in kde4.
Can't switch to console.

system: gentoo
driver: xf86-video-ati and mesa compiled from git
xorg-server: 1.5.3

xorg.conf:
Identifier "Card0"
Driver "radeon"
VendorName "ATI Technologies Inc"
BoardName "M56P [Radeon Mobility X1600]"
BusID "PCI:1:0:0"
Option "AccelMethod" "EXA"

Everything freezes except for the mouse cursor.

[yotambien]

Mobility radeon 9600/9700, no composite thing, no fancy xorg.conf options, laptop fails to resume from suspend to ram like 20% of the times. This started a couple of weeks ago when I removed fglrx and left only radeon on the system (version from Debian sid).

[Stormking]

Does anyone investigate this issue? How can I help? I'd really like to activate acceleration because scrolling in firefox is *much* smoother this way. But when I take "MigrationHeuristics Greedy" out of my xorg.conf, X freezes after about 15 minutes.

[bridgman]

Stormking, you mentioned earlier that improving cooling to the GPU fixed the problem; did it come back ?

[Stormking]

Stormking, you mentioned earlier that improving cooling to the GPU fixed the problem; did it come back ?

There seems to be a misunderstanding. Cooling the GPU helped me with the X-freezes-but-mouse-pointer-can-still-be-moved-problem, two years ago. Now, there's a X-freezes-completely-when-acceleration-is-activated-problem.

[f0x_]

It's not a cooling problem. In my opinion there's a bug related to (compiz, kde desktop effects) acceleration. I don't know how to file a bug report cause the freeze can't make me switch to console.

[bridgman]

There seems to be a misunderstanding. Cooling the GPU helped me with the X-freezes-but-mouse-pointer-can-still-be-moved-problem, two years ago. Now, there's a X-freezes-completely-when-acceleration-is-activated-problem.

Got it. Thanks !

[Stormking]

I'd like to repeat my question: Is anyone investigating this issue? And how can I help?

[Ren Höek]

I also have freezes with my Ati Mobility Radeon 9700 and the open source radeon driver. With Desktop Effects enabled X freezes immediately, without it system sometimes holds out for some minutes, but most of the time just a few seconds after login.

Solution was to set AGPMode to x1 :

	Option		"AGPMode"	"1"

I don't know if this is really a "real" solution or just a dirty fix. Default value for this card is 4 and as far as I could measure I lose some fps, but everything is stable.

I hope it can help.
Or at least someone can tell, why default value doesn't work...

[xeros]

I had this problem some time ago, with the OSS driver *and* fglrx. The solution was to provide better cooling to the GPU.

The same with my Radeon 9600 and my friends Radeon 9250 - after opening the computer I noticed the graphic card is very hot (no fan on card). With computer cover open I've noticed a lot better stability on the open source drivers. Both systems use Kubuntu 8.10 and the default xorg.conf.