Mailinglist Archive: radeonhd (265 mails)

["Alex Deucher" <alexdeucher@xxxxxxxxx>]

On Jan 12, 2008 8:27 AM, Peter Grasch <bedahr@xxxxxxx> wrote:
> Hi!
>
> I am the (not so proud) owner of a new radeon HD 2600 pro from Gecube with an
> hdmi port (no adapter needed).
>
> The logfile states this _is_ an unsupported card.
>
> I am trying to do a dual head setup:
> * VGA_1: Touchscreen (800x600)
> * DVI-D_1 (this is the name for the hdmi port): link to the beamer (720p)
>
> When I start up I have two 800x600 screens.
>
> When I change the VGAs resolution using
> randr --output VGA_1 --mode <bla>
> I change BOTH resolutions.
>
> However, when I change the DVIs resolution using
> randr --output DVI-D_1 --mode 720p
> it switches to the correct resolution, leaving the VGA untouched.
>
> This wouldn't be a problem but I guess that's why I always get two 800x600
> screens on X startup (which is a problem, because my beamer can't handle that
> resolution).
>
> Also, when I maximize a window on the beamer after the resolution switch it
> gets still maximized to 800x600 und ends up stuck in the left upper corner of
> the screen. But that may as well be related to (non-) xinerama (doing a
> recompile of all xinerama aware applications right now).
>
> Distribution: gentoo
>
> I have attached the xorg.conf and the log file.

Check the output of xrandr for the crtc assigned to each output.  I
suspect you are getting a clone by default (1 crtc driving both
outputs rather than 1 crtc per output).  you can use xrandr to specify
which crtc you want to drive which output; see xrandr --help

Alex
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