Ubuntu 12.04 dual monitors stay mirrored

Question

I just installed Ubuntu 12.04 and I'm having some trouble getting my two monitors working properly. I have one 24" Samsung and one 23" Acer, both running 1920x1080. My video card is a ATi HD5870.

By default the monitors are set to mirror but I want it to extend across both screens. I tried to uncheck the mirror option in Displays, but it complained that 3840x1080 was too big.

I installed the ATi propriety drivers and went into Catalyst Control Center and set the displays to be extended like I want. I was prompted to reboot, so I did, and nothing changed - the displays are still mirrored.

I think that you just need to do step 4 of this http://askubuntu.com/a/128862/32413 — Boris, May 07 '12 at 12:37

score 1 · Answer 1 · edited Apr 13 '17 at 12:25

1

It's not the same question but this answer did the trick for me

edited Apr 13 '17 at 12:25

Community

1

answered May 04 '12 at 22:29

Ron Smith

121

I think that you should point the response in your link and not the question to avoid misunderstanding – Boris May 07 '12 at 12:40
Good call @Boris, I updated the link. – Ron Smith May 08 '12 at 01:21

Ubuntu 12.04 dual monitors stay mirrored

1 Answers1