View Full Version : [all variants] HowTo Configure 3 Monitors with ATI?

June 16th, 2010, 02:24 PM

Does anyone knows WHY I can't enable my 3rd and 4th monitor on Ubuntu 10.04? Does it have anything to do with xorg?

I can easily do it in Windows! In ubuntu ATI control center will recognize the 3rd monitor but DO NOT let me enable it... the same about the video card!
I tried to do it manually changing xorg.conf but it totally ignores it!

I found this thread:

Does it have anything to do with XRandR ???

I managed to get the Crossfire working and enable it after put two identical cards. I've tried adding a 3rd card to even try a 4th monitor but it will not let me at ALL... WHY THIS?? I can do it in Windows but I do not want to use Windows!!!

This is really frustrating! Why do not allow to use more than 2 monitors???

I'm running a clean new installation of Ubuntu 10.04 64bit and I've installed the ubuntu drivers for my video card. I've a double ATI HD 5770 (crossfire) and a third video card in the motherboard (Asus M4A89GTD Pro/USB3).

My idea is to have 4 monitors, 3 in the crossfire and one in the motherboard. I've managed to do it in windows but in linux I can get max of two monitors working... :/

January 12th, 2011, 09:08 PM
I have the same Problem!