My setup looks like this:
- Lenovo X1 2015
- Two external screens attached
- Running Ubuntu 15.04
What I want: Close the laptop lid and mirror both screens, so not extending them but let them display the same content.
What happens now: When I click "mirror" in the display settings, the internal display and one external gets mirrored, and the second external display stays black.
Who can help? What do I have to do to mirror two external monitors?