radeon 9000 (rv250) dvi 1920x1200 troubles
Alex Deucher
alexdeucher at gmail.com
Tue May 13 09:07:22 PDT 2008
On Tue, May 13, 2008 at 11:08 AM, Andre Puschmann
<andre.puschmann at stud.tu-ilmenau.de> wrote:
> Alex Deucher wrote:
> > (II) RADEON(0): Modeline "1920x1200"x60.0 154.00 1920 1968 2000 2080
> > 1200 1203 1209 1235 -hsync +vsync (74.0 kHz)
> >
> > the problem is you are using xserver 1.3 which had a bug when parsing
> > sync polarity from edid. the sync polarities are reversed and many
> > LCDs don't like that. try the following modeline:
> > Modeline "1920x1200R" 154.00 1920 1968 2000 2080 1200 1203 1209
> > 1235 +hsync -vsync
> >
> > xrandr --newmode "1920x1200R" 154.00 1920 1968 2000 2080 1200 1203
> > 1209 1235 +hsync -vsync
> > xrandr --addmode DVI-0 "1920x1200R"
> > xrandr --output DVI-0 --mode "1920x1200R"
> >
> > Check to see if your distro provides a patch to fix that or upgrade to
> > a newer xserver.
> >
> > Alex
>
> Thanks for your prompt reply.
> Unfortunately this doesn't work either. I already tried this settings as
> this was one of the modelines I found with google.
>
> I also tried the newest Ubuntu Live-CD with the same results (xserver
> 1.4). But I will check again, if this version auto-detects the edid
> values correctly.
>
> And even worse, my monitor doesn't provide any error output. I just
> stays black.
>
> Maybe this problem is really because my video card can't provide the
> right signal?
> Is there anybody out there who runs a radeon 9000 with a resolution of
> 1920x1200px?
Can you try the VGA port rather than the DVI port?
Alex
More information about the xorg
mailing list