The error state here says Kernel: 3.5.0-26-generic, so I would check the grub menu to make sure it was defaulting to the older kernel. To get past #1153587, we need i915.i915_enable_rc6=0 - the root cause behind those is still a mystery. Some have been linked to a severe GPU hang, some have been linked to needing a BIOS update, most seem to have no obvious cause. And you are also hitting the semaphore issue, so i915.semaphores=0 to workaround that issue as well. I'm sorry, you seem to have found all of our outstanding issues. :(
-- 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/1154591 Title: [sandybridge-m-gt2+] False GPU lockup IPEHR: 0x3b000000 IPEHR: 0x0b140001 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1154591/+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
