Created attachment 27031 [details]
harware: Lenovo Thinkpad X200
How to reproduce:
Running xscreensaver-demo and browsing thru the available screensaver triggers the freeze. Clicking on GFlux made my box instantly freeze twice. Another time the preview of Gears made X freeze. When X crashes the mousecursor can still be moved ....
In my logs files i saw the line:
[drm:gm45_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
Created attachment 27032 [details]
-- system architecture: 64-bit
-- xserver: 22.214.171.1241
-- mesa: 7.4.2
-- libdrm: 2.4.11
-- Linux distribution: Arch
Please provide intel_gpu_dump according to http://intellinuxgraphics.org/intel-gpu-dump.html.
Created attachment 27072 [details]
Works fine on my GM45 with Mesa master. Please update and try again.
i installed mesalib 7.5rc4 (via aur from archlinux) and i'm still seeing freezes.
To trigger it i just select GFlux, then select another G* screensaver, then back to GFLux. After repeating these steps a few times X will always freeze.
last lines in my Xorg.log after the crash:
"(WW) intel(0): ESR is 0x00000001
(WW) intel(0): Existing errors found in hardware state."
Recent archlinux update (updated xorg, intel-driver, mesa, ...) fixed to bug.