I had the exact same issue on a Lenovo Thinkpad 13 (Intel core i5 6200 with skylake graphics) with Linux Mint 18 (based on 16.04 xenial) running ubuntu kernel 4.4.0-21. Upgrading to kernel 4.4.31 from http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.31/ fixed it.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1559308 Title: Plugging HDMI screen in causes system hang To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1559308/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
