radeon 9000 (rv250) dvi 1920x1200 troubles

[Andre Puschmann]

Hey guys,

sorry for waisting this thread again.
Unfortunately, I am still having problems with permanently adding the
configuration to the Xorg settings.

I added the modeline to my xorg.conf and also set "PreferredMode" but it
doesn't work. I also tried to disable DDC (at the display and at xorg.conf).

However, I am still getting something like this:

(**) RADEON(0): Option "PreferredMode" "1920x1200"
(WW) RADEON(0): Option "PreferredMode" is not used


Any hints?

Best regards,
	Andre





Andre Puschmann wrote:
> Hey guys,
> 
> I just solved my problems! Well, at least the ones regarding my new tft ;-)
> Ok, here is what I did: i mounted my old hdd and installed windows xp
> (shame on me :-) It worked out of the box with the radeon drivers from
> Dell. The app reported 60Hz refresh-rate. However, the monitor OSD only
> showed 50Hz. I than tried to create a modeline with cvt for 50hz. But
> that one didn't work. But using the reduced blanking mode (-r) it does.
> 
> This is the modeline:
> 
> $ ./cvt 1920 1200 50 -r
> 
>   # 1920x1200 @ 50.00 Hz Reduced Blank (CVT)
>   #   field rate 49.97 Hz; hsync: 61.42 kHz; pclk: 127.75 MHz
>   Modeline "1920x1200_50.00_rb"  127.75  1920 1968 2000 2080  1200 1203
> 1209 1229  +HSync -Vsync
> 
> Maybe this is useful for somebody else.
> 
> Thanks Alex + Felix for your help.
> 
> Best regards,
> 	Andre
> 
> 
> 
> 
> Andre Puschmann wrote:
>> Alex Deucher wrote:
>>> On Tue, May 13, 2008 at 12:33 PM, Alex Deucher <alexdeucher at gmail.com> wrote:
>>>> On Tue, May 13, 2008 at 12:26 PM, Andre Puschmann
>>>>
>>>>
>>>> <andre.puschmann at stud.tu-ilmenau.de> wrote:
>>>>  > Alex Deucher wrote:
>>>>  >  > 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?
>>>>  >
>>>>  >  Sure,
>>>>  >
>>>>  >  the VGA port works with the above settings.
>>>>  >  But in my opinion the signal isn't very good, it looks a bit blurry.
>>>>  >
>>>>  >  Maybe that helps to isolate the problem.
>>>>
>>>>  Perhaps the monitor doesn't like the bios provided TMDS PLL, does this
>>>>  option help (assuming your driver is new enough):
>>>>  Option "DefaultTMDSPLL" "TRUE"
>>> Another possibility is that if this is a thinkpad, IBM only rates the
>>> DVI port up to 1600x1200.
>>>
>>> Alex
>> Hey Alex,
>>
>> no, it's a Dell Latitude D600.
>> The suggested option doesn't work either.
>> In ubuntu 7.10 this option is not documented (i.e. "man radeon" shows
>> nothing) but the xorg log shows no "unsupported option" so i guess it is
>> implemented.
>> In Ubuntu 8.04 this switch is documented but it also doesn't work (I
>> mean it doesn't solve the problem :-).
>>
>> I am not sure if this is driver/settings related problem or a hardware
>> one?! What else can I try? Install Windows?
>>
>> Thanks very much
>>
>> Best regards,
>> 	Andre