Ubuntu
fglrx-installer package

  1. Bug #366757
  2. Comment #14

Comment 14 for bug 366757

Revision history for this message
devtrue (dtrueit) wrote : Re: Display Preferences causes 100% CPU usage and does not open correctly

I have an ATI Technologies Inc RV630 [Radeon HD 2600XT] and was experiencing the same problem.

I disabled RandR 1.2 and it seems to have fixed, or at least created a workaround, for the issue. Perhaps it will give someone much smarter than I am a chance to actually get to the bottom of the problem.

I added "EnableRandR12=Sfalse" (no quotes) to /etc/ati/amdpcsdb under [AMDPCSROOT/SYSTEM/DDX] and added "Option "EnableRandR12" "false"" (no outer quotes) to the device section of my xorg.conf. I restarted GDM and went to the display manager from the System menu and it opened with no problems. I was then able to setup my dual-head system, which is how I got into this mess in the first place.

Attaching my xorg.conf