How can I get Ubuntu to send the screen image to my projector on the Display Port of my notebook?
Nothing happens when I plug in the DP cable (projector is on) or use the function keys (Fn + F7) to switch (other function keys work). The Displays dialog only shows my regular monitor, no others. When powering down however, I can briefly see the Ubuntu shutdown screen.
- Ubuntu 12.10 64bit
- Lenovo T420s
- Epson projector.
How can I fix this?