Try this PPA https://launchpad.net/~bryce/+archive/fig and reboot
Let me know if the system stops freezing after installing this or not, and attach a fresh copy of your dmesg and /var/log/Xorg.0.log. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: New => Incomplete -- 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