[Bug 1559308] Re: Plugging HDMI screen in causes system hang

I also have the same problem. I am using Ubuntu 16.04 release version with a Thinkpad X1 Carbon. -- 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

Re: [Bug 1559308] Re: Plugging HDMI screen in causes system hang

In order to boot, I need to set acpi=off when I use 4.4.8, which solves the external monitor issue. However, I am not able to shut down my computer without pressing the physical button. Any ideas? On Thu, May 5, 2016 at 1:22 AM, Ethan wrote: > Kernel 4.4.8 solved my