Philip, your log errors are about mutter crashing, not about a GPU lockup. Seems you have some unrelated bug.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/720468 Title: [i915gm] GPU lockup (ESR: 0x00000001 IPEHR: 0x7f9c002d) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
