Having the same issue here, fresh 16.04 LTS install on Dell E7470 with i5-6300U.
As soon as I plug in HDMI the screen freezes. It does fine if I boot up with HDMI already plugged in. I am using drivers from https://launchpad.net/~oibaf/+archive/ubuntu /graphics-drivers kernel 4.4.0-22-generic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1562076 Title: Ubuntu freezes a few seconds after plugin a screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1562076/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
