radeon: incorrect crtc for external LCD on VGA-0

[Otto Solares]

On Fri, Dec 07, 2007 at 02:38:57AM -0500, Alex Deucher wrote:
> On Dec 7, 2007 2:18 AM, Otto Solares <solca at guug.org> wrote:
> > Hi!
> >
> > Video card on x86 laptop:
> >
> > ATI Technologies Inc Radeon R250 [Mobility FireGL 9000] (rev 02)
> >
> > I used to have an old external CRT monitor attached to the VGA-0
> > connector and the command `xrand --output LVDS --off` would
> > correctly turn off the laptop's LCD so I can work in the external
> > without having both monitors powered-on.
> >
> > Problem now is that I buy a new external LCD monitor and the
> > above command would turn off both the new LCD and the laptop's
> > LCD.
> >
> > But when `xrandr --output VGA-0 --crtc 0` everything works as
> > expected so I pressume is a bug in the crtc detection when a
> > LCD is attached in the VGA-0 connector both monitors are driven
> > by the same crtc.  As I said, plugging the CRT monitor doesn't
> > exhibit this problem.
> >
> > Running latest Debian Sid (X Server 1.4.0) and git radeon driver.
> 
> Did you/debian also upgrade the xrandr utility to the latest version
> in git as well?

No, I'm using Debian's:

# which xrandr
/usr/bin/xrandr
# dpkg -S /usr/bin/xrandr 
x11-xserver-utils: /usr/bin/xrandr
# dpkg -l x11-xserver-utils
ii  x11-xserver-utils   7.3+2               X server utilities

-otto