This PPA also solves the issue for me. With out it the latest daily locks as soon as i click my username on the login screen.
** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/763259 Title: [i915gm] GPU lockup (ESR: 0x00000001 IPEHR: 0x7f9c000f) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs