Created attachment 29284 [details] intel_gpu_dump output In general shaders are broken in many ways on i965. I have attached intel_gpu_dump that I have run via ssh
Also note that compiz 'blur windows' effect hangs it too, but it hangs compiz on startup, so harder to test In water effect, usually just two waves are enough to trigger the hang.
I can't reproduce this with git tip of xf86-video-intel/mesa/libdrm and kernel 2.6.31-rc8. Which driver version are you using?
I use compiz from ubuntu 9.04 - no modifications I use -git tip of every graphic component (mesa,xserver,libdrm,xf86-video-intel) I use KMS/DRI2 and of course compiz. I have DG965RY motherboard. I use 2.6.31-rc8 kernel, just like you. I will send soon the .config for kernel, and some gconf dump for compiz. This problem isn't limited to water. It happens for sure with reflection, and blur windows (I am not very sure about this, since I misnamed this for the reflection) It is especially reproducible when I do the following: 1 - Boot system with compiz 2 - click on crtl+shift (this shows correct circular water wave around mouse) 3 - click crtl+shift again - system hangs At that point, I can ssh in, but tty system is locked, so I can't type a thing. I recently realized that I can pass a name of program that I want to execute to ssh, and this way I have got that dump. I once tried to debug same thing with netconsole, and found out that a task (don't remember which, compiz I guess) hangs in gem. But I am almost sure, this is a result of wrong shader program send to GPU. (Same configuration works fine on nvidia addon card I used in the near part - now I finally ceased to use it)
And I noticed that if I first run some 3D applications (googleearth), then sometimes water effect will work for many keypresses, but still will eventually hang
I have updated graphical stack git trees, and now compiz water effect works cleanly, couldn't reproduce any hangs. So does another effect, 'blur windows', it works fine as well. However, reflection plugin doesn't work, and after ~10 seconds hang the system.
I tested in addition -git of kernel. I did a quick fix for issue I reported in https://bugs.freedesktop.org/show_bug.cgi?id=24444 Now, thanks to GPU reset code, system doesn't hang completely, but xserver restarts, and unfortunately next time, it is broken (I see gdm login, and can't go futher. yet, expect that I can switch to console, and do whatever I want) Best regards, Maxim Levitsky
And one more thing, last time I tried reflection plugin, it did draw the output as expected.
*** This bug has been marked as a duplicate of bug 19740 ***
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