Re-installing the Intel Drivers through the Intel Graphics Installer [1] seems to have solved the problem, some configuration files were probably over-written during the update.
[1] https://01.org/linuxgraphics/downloads ** Changed in: xorg (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1363017 Title: Resolution breaks on external monitor after 3.13.0-35 update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1363017/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs