[ltp] xorg.conf for t42p + Dell 2407wfp monitor

[Aaron Mulder]

It may be easiest to make sure that 1920x1200 works on the external
monitor alone, and then worry about adding it into the dual-head
configuration.  When I tried to use a widescreen monitor under Linux
the higher widescreen modes weren't recognized automatically.  I had
to use read-edid to generate the information describing the extra
resolutions.  After I put that into my config file I was able to run
it at the max widescreen resolution.  (But caveat, that was not with a
thinkpad or with this particular monitor.)

Thanks,
      Aaron

http://john.fremlin.de/programs/linux/read-edid/

On 12/25/06, Yury <x.ltp@blin.com> wrote:
> Hi,
> Is it possible to run an external LCD from t42p using max resolutions on both
> (1600x1200 + 1920x1200)?
>
> My current setup is Slackware with xorg-6.8.2, open source radeon driver.
> Video card is "ATI Technologies Inc M10 NT [FireGL Mobility T2] (rev 80)"
>
> I have a working setup using a Dell 2001FP LCD with MergeFB option and
> MetaMode "1600x1200-1600x1200". And this is the most I can get using the
> wider monitor (Dell 2407WFP that is capable of 1920x1200). I am getting a
> horizontally stretched picture on the external monitor - not a pretty view...
>
> The monitor is connected through the VGA port (15-pin D-Sub). The Xorg log has
> those lines during the startup:
>
> (II) RADEON(0): Generating MergedFB mode list
> (WW) RADEON(0): Mode "1920x1200" is not a supported mode for CRT2
> (WW) RADEON(0): Skipping metamode "1600x1200-1920x1200".
>
> Does anybody have a similar setup working? Can you share your xor.conf file
> then?
>
> Will it help to upgrade to the latest version of xorg? The official Slackware
> doesn't support it, so it will need to be compiled from the sources, right?
> Are there easier alternatives?
>
> Will the proprietary API driver be better in supporting this configuration?
>
> Thank you,
> Yury
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