radeon driver only detecting one monitor

[Alex Deucher]

On 11/7/05, Friedrich W. H. Kossebau <Friedrich.W.H at kossebau.de> wrote:
> Hi Lynx, Alex, list!
>
> Am Montag 07 November 2005 22:11, schrieb Alex Deucher:
> > On 11/7/05, lynx.abraxas at freenet.de <lynx.abraxas at freenet.de> wrote:
> > > Hallo!
> > >
> > >
> > > My problem is:
> > >
> > > When  I  start Xorg with my TFT-monitor conected to my laptop only my
> > > external TFT gets detected and thus leads to X running only on that one.
> > > And  I  can't get xinerama or dual config to work.
> >
> > you need to force the second head on with the monitorlayout option if
> > the driver fails to detect teh second monitor. see the radeon man page
> > for more info.  e.g., add this to the device section of your config:
> > Option "MonitorLayout" "LVDS, CRT"
>
> If only this would work everywhere. Accidently I played around with the X
> settings of my Radeon Mobility 9000 (M9) Lf (AGP) just yesterday and found
> the detection of the external monitor to fail if one is not going the
> MergedFb road.

setting mergedfb to true automatically forces on both outputs.  the
detection is the same either way.

Alex

> X works so far that it sets up the second head (as found out with randr
> output, also mouse behaves as it walks around in some unseen area next to my
> screen), only there seem to be no signals on the wire to the external
> monitor. Cmp also https://bugs.freedesktop.org/show_bug.cgi?id=1559
>
> FWIW: SUSE 10.0's X.Org 6.8.2
>
> Regards
> Friedrich
>
> PS: Attached is my very last xorg.conf where I gave up when I felt it to be a
> driver problem, not configuration.
>