Created attachment 26858 [details] syslog snippet containing oopses. first reported at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/384865 this appears on thinkpad X200 and X300 which are GM45 and GM965 respectively. both reporters running x86-64 versions of Ubuntu Karmic (2.6.30-8 and -9, intel driver 2.7.99.1+git20090602.ec2fde7c-0ubuntu2, xorg 7.4) It seems that sometimes when DPMS is activated, something gets wedged and the kernel prints some backtraces. The original reporter saw this with a kernel version which I'm pretty sure worked fine for me for the week I was using it, but I upgraded today and saw it with 2.6.30-9-generic. Attached is the portion of my syslog which contained the oopses.
*** This bug has been marked as a duplicate of bug 22336 ***
Not a duplicate just because of the backtrace. This sort of GPU hang needs intel_gpu_dump output for us to make any progress.
We tested on Thinkpad X200 with Ubuntu Jaunty 64bit and kernel: (drm-intel-next)b5aa8a0fc132dd512c33e7c2621d075e3b77a65e and xorg stack from xorg-edger PPA with version: 2:2.7.99.901+git20090624.f0270bbb-0ubuntu0sarvatt~jaunty. It works just fine either with screen blanks for inactivity or xset dpms force off.
After verification, we don't find the issue reproduce, so close it. Pls open it if you need. Thanks Ma Ling
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