I can reproduce this bug 100%. Also there is a workaround, just using Gnome classic (No effects). But if I use anything fancy which has desktop effects, all I need to do is mplayer some video, and as soon as screen saver starts to dim the screen, computer just shuts down.
I have plenty of these in kernel log: WARNING: at drivers/gpu/drm/i915/intel_display.c:793 intel_enable_pipe+0x14a/0x150 [i915]() .. WARNING: at drivers/gpu/drm/i915/intel_display.c:930 assert_pipe+0x75/0x80 [i915]() -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1001594 Title: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1001594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
