After a few more tests it happens exactly 10 minutes after the lock screen so looks like a suspend issue on the GPU.
-- You received this bug notification because you are a member of Ubuntu Bug Control, which is subscribed to a duplicate bug report (830276). https://bugs.launchpad.net/bugs/828684 Title: [i965gm] False GPU lockup EIR: 0x00000010 PGTBL_ER: 0x00000100 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/828684/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-bugcontrol Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-bugcontrol More help : https://help.launchpad.net/ListHelp
