The issue persists with kernel 4.6-rc4. However it disappears (fixed?) with the intel nightly drivers as of April 16th 2016 (from http://kernel.ubuntu.com/~kernel-ppa/mainline/drm- intel-nightly/2016-04-16-wily/ ).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1566759 Title: Full system lockup after attaching external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1566759/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs