[ltp] DVI problem again

Alex Deucher linux-thinkpad@linux-thinkpad.org
Thu, 17 Nov 2005 18:13:10 -0500


On 11/17/05, Dragos Vingarzan <vingarzan@fokus.fraunhofer.de> wrote:
>  From my T42 with the 7500 and trying with different hi-res LCDs:
> 1. The DVI can't drive displays with a res >1280x1024.
> 2. The DVI and LCD do not work in parallel - maybe it's the same
> circuit, because I could never turn them both on.
>
> As with the windows drivers it's the same, I think those are limitation
> of the 7500...
>
> With the T43p and the V3200 (M24) it is quite easy to go over both proble=
ms.
>

It's definitely not a limitation of the chip (the display cells on the
radeons have been roughly the same since the r128 days), however, how
IBM wired it up is another matter...

Alex

> Cheers,
> Dragos
>
> Martin H=F6fling wrote:
>
> >I still could not solve the following problem: Samsung 20'' 1600x1200
> >connected to the DVI port of my dock. Radeon 7500 Mobility in a T40 (rad=
eon
> >driver):
> >
> >-Analog 1600x1200 is working flawless (Windows & Linux)
> >-DVI hangs (linux) or shows 1280x1024(Windows) 1600x1200 only scrolling =
(I
> >assume it's the IBM-Windows software encoded limitation)
> >-I tried to add modelines to my monitorsection, both are working in anal=
og
> >mode with 60Hz output
> >        Modeline        "1600x1200" 162.00 1600 1664 1856 2160   1200 12=
01
> >1204 1250
> >        Modeline        "1024x768"  60.80  1024 1056 1128 1272   768  76=
8  770
> >796
> >
> >-another question which has nothing to do with the problem: xrandr rotat=
ion is
> >not working
> >
> >I provided some (hopefully useful) information, thanks for help.
> >       Martin
> >
> >martin@arrakis ~ $ xrandr -q
> > SZ:    Pixels          Physical       Refresh
> > 0   1024 x 768    ( 411mm x 311mm )   0
> >*1   1600 x 1200   ( 411mm x 311mm )  *0
> >Current rotation - normal
> >Current reflection - none
> >Rotations possible - normal
> >Reflections possible - none
> >
> >martin@arrakis ~ $ X -version
> >
> >X Window System Version 6.8.2
> >Release Date: 9 February 2005
> >X Protocol Version 11, Revision 0, Release 6.8.2
> >Build Operating System: Linux 2.6.12 i686 [ELF]
> >Current Operating System: Linux arrakis 2.6.14.1 #1 PREEMPT Sun Nov 13
> >20:44:34 CET 2005 i686
> >Build Date: 19 September 2005
> >        Before reporting problems, check http://wiki.X.Org
> >        to make sure that you have the latest version.
> >Module Loader present
> >
> >xorg.conf is attached.
> >
> >
> >
>
> --
> -----------------------------------------
> Dipl. Eng. Dragos Vingarzan
> FOKUS/NGNI
> Kaiserin-Augusta-Allee 31
> 10589 Berlin,Germany
> Phone +49 (0)30 - 3463 - 7385
> Mobile +49 (0)162 - 153 - 0154
> eMail vingarzan@fokus.fraunhofer.de
> Web www.fokus.fraunhofer.de
> We could change the world if God would give us the source code...
> -------------------------------------------------------
>
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