setting up xrandr with two graphics cards

Alex Deucher alexdeucher at
Mon Nov 19 06:28:10 PST 2007

On Nov 19, 2007 7:41 AM, martin f krafft <madduck at> wrote:
> Hello,
> I had a triple-head setup, using two Radeon 92x0 cards. This worked
> fine with Xinerama for years, until this morning when it would no
> longer start up.
> Instead of trying to find the problem, I chose to migrate to RANDR
> 1.2, which I already use on other machines. However, this machine
> has two graphics cards and three monitors connected, and I cannot
> get it to work.

Randr 1.2 and xinerama do not currently mix.  Support for GPU objects
in randr 1.3 should fix that. Until them you'll have to use the cards
independently or switch back to the old ati driver (6.6.3).


More information about the xorg mailing list