Ubuntu
xorg package

  1. Bug #914713
  2. Comment #5

Comment 5 for bug 914713

Revision history for this message
Alex K (alkempster-cu) wrote :

resolved by performing these steps:

Re: remove xrandr 1.2 and let ati setup my screens
I ran into the same problem last week and was just trying to remember how I did it because a coworker wanted to know. So for your and his benefit...

Edit /etc/ati/amdpcsdb
In the section labeled [AMDPCSROOT/SYSTEM/DDX]
add this:
Code:

EnableRandR12=Sfalse

Also, in /etc/X11/xorg.conf in the "Device" section add:
Code:

Option "EnableRandR12" "false"

Hope that helps.

thanks to ToeBee at the Ubuntu forums.

then. run catalyst control manager in administration mode and set desktops to single desktop (multiple display(s)) - should be the bottom option. You then need to reboot to save changes. At the terminal type: sudo aticonfig --dtop=horizontal and follow the prompts. You should get an error message. After this you can then change to a multi display desktop by rebooting and changing settings through the catalyst control center.

Not sure all the above is needed, but they are what i did to resolve the issue.