On the face of it, it looks like a memory ordering issue. It would be interesting if you could give the drm-intel-nightly kernel from ppa:mainline a test.
** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete => Confirmed ** Summary changed: - [q35] False GPU lockup EIR: 0x00000010 PGTBL_ER: 0x00000002 IPEHR: 0x02000000 + [q35] False GPU lockup EIR: 0x00000010 PGTBL_ER: 0x00000002 -- invalid PTE for host access -- 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/1162151 Title: [q35] False GPU lockup EIR: 0x00000010 PGTBL_ER: 0x00000002 -- invalid PTE for host access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1162151/+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