Hey, I have a similar problem, see Bug #827531
I get this i915 hangcheck messages all the time: [..][drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed... blt ring idle [waiting on 2310953, at 2310953], missed IRQ? [..] My GPU is a Intel HD3000 (sany birdge, Core i7-2620M). Computer is a Dell E6520 (Laptop). $ dmesg [..] [ 5.828173] i915 0000:00:02.0: irq 45 for MSI/MSI-X [ 5.828180] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [ 5.828182] [drm] Driver supports precise vblank timestamp query. [..] [ 5.984485] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem [ 6.076969] fbcon: inteldrmfb (fb0) is primary device [ 6.139589] Console: switching to colour frame buffer device 240x67 [ 6.146270] fb0: inteldrmfb frame buffer device [ 6.146272] drm: registered panic notifier [..] -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/732304 Title: [sandybridge-gt2+] Intel sandy-bridge dual-head GPU hang To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/732304/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
