Created attachment 68963 [details] Xorg log chipset: Intel GT2 / HD 4000 system environment: x86_64 libdrm version: 2.4.33 mesa version: 8.0.4 xf86-video-intel version: 2.19.0 xserver version: 1.12.4 kernel version: 3.2.0 distribution: debian wheezy hardware: Asus P8Z77-V LE, i7 3770 display connector: displayport Running with 64 MB GPU RAM on the 3.2.0 kernel, the computer totally freezes within minutes or hours. The freezes have happened on keyboard or mouse input, and the computer can run unattended with heavy load (folding@home) for weeks without problems. With 256 MB GPU RAM comfigured in BIOS, the freeze took days to occur, and with a 3.5 there have been no freezes so far. If I blacklist i915 in the kernel to use the Vesa driver, the system is stable, so it looks like the problem in in the i915 module, and probably has something to do with memory handling. The whole system freezes, and power cycling is the only way out. Nothing shows up in the logs, even with netconsole and drm.debug=0xe. Please see the debian bug at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=689268 for a long discussion on the subject (which ended in a request to report the problem upstream). As you can see there, I'm not the only one with this problem.
Created attachment 68964 [details] dmesg output
Oops, typo. What I meant to say is that the system is stable on a 3.5 *kernel*. I tried the one from debian experimental and hade no freezes for 11 days (when we unfortunately had a power outage).
I'm confused a bit: To clarify: 3.2 is broken and 3.5 works?
(In reply to comment #3) > I'm confused a bit: To clarify: 3.2 is broken and 3.5 works? Yep. This report is a request to help find the commit to backport to stable kernels so others don't run into the same freeze.
In that case I highly suggest to do a reverse bisect and submit the patch that fixes things to stable. We generally don't bother to support anything which isn't the latest and greatest release, simply because we fix too many bugs.
Ok, thanks. Of course if the symptoms (ivb, system locks up when interacting with the machine e.g. by webbrowsing for a few hours or so, fan spins down, some noninteractive gpu stress testing didn't trigger it) ring a bell to anyone, please don't hesitate to let me know.
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