Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am new to Ubuntu. I was looking to see if double monitors were supported, and I accidentally disabled both of mine. What can I do? I tried plugging in a third monitor, but nothing happened.

share|improve this question
Have you tried restarting your computer? If nothing needs to be saved, press ctrl+alt+F1 and then ctrl+alt+delete How did you disable both monitors? Ubuntu will default back to the previous display settings if you do not click "accept." – Vreality Feb 20 '13 at 3:51

You might be able to use xrandr to turn your monitor back on. Switch to another terminal with ctl-alt-f1, login and typing xrandr will list your monitors. (assuming xrandr is installed- you might have to sudo apt-get install xrandr) From there it'll be something like xrandr --output FILL-IN-NAME-HERE --auto

Hope it works for you

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.