xf86-video-ati, XRandR 1.2, and what used to be MergedFB

Marius Groeger mgroeger at sysgo.com
Mon Sep 17 05:54:10 PDT 2007

On Mon, 17 Sep 2007, Michel Dänzer wrote:

> > This problem persists. Apparently the little embedded screen relates 
> > to the implicitly not entirely disabled S-Video screen, hence the 
> > dimension of 320x200 pixels. Strangely enough, the infamous "xrandr 
> > --output S-video --off" DOES NOT turn this embedded screen off!
> Probably because the clients don't re-query the Xinerama information.
> Try disabling the S-video output in xorg.conf instead.

How do I do this? I can't seem to find a suitable option in radeon.man.
You're not talking about DefaultConnectorTable, are you? I am now using a
single screen initial ServerLayout as Bernard suggested, however to no 

But the real problem is that the VGA consistenly remains dark, even if
enabled via xrandr. Do you have a hint for this problem? Without this, 
the driver is unusable in a dual head setup. :-(


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