Further info—Xorg.log.Old is completely blank after a failed boot. I'm assuming that means Xorg failed to start altogether?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1623294 Title: Black screen on startup after HWE stack update on Ubuntu 14.04 LTS [Radeon R7 graphics] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1623294/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs