Incidentally, while X was hung I ssh'ed in over the network and looked at /sys/kernel/debug/dri/0/i915_error_state. It said "no error state collected".
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/793507 Title: Xorg freeze on external monitor hookup -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs