So, I removed all my PPA, downgraded to the default saucy kernel, added the oibaf PPA, and re-installed the fglrx-updates drivers (also tried the fglrx package). I'm still getting the same problem.
$ uname -a Linux naught101-chronos 3.11.0-13-generic #20-Ubuntu SMP Wed Oct 23 07:38:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux $ aptitude show fglrx-updates Package: fglrx-updates State: installed Automatically installed: yes Version: 2:13.101-0ubuntu3 ... $ aptitude show xserver-xorg-video-intel Package: xserver-xorg-video-intel State: installed Automatically installed: no Version: 2:2.99.905+git1311070905.b796c3~gd~s ... $ aptitude show xserver-xorg-video-ati Package: xserver-xorg-video-ati State: installed Automatically installed: no Version: 1:7.2.99~git20130816.d0323622-0ubuntu0smartboyhw ... $ aptitude show libgl1-mesa-glx Package: libgl1-mesa-glx State: installed Automatically installed: no Multi-Arch: same Version: 10.0~git1311070908.110009~gd~s ... ** Attachment added: "Xorg.1.log" https://bugs.launchpad.net/ubuntu/+source/fglrx-installer-updates/+bug/1068404/+attachment/3905422/+files/Xorg.1.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1068404 Title: Low graphics mode in muxless hybrid ATI/Intel GPU systems after fglrx upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1068404/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs