[ltp] T23 and external monitor

Tino Keitel linux-thinkpad@www.bm-soft.com
Fri, 5 Apr 2002 09:45:02 +0200


On Thu, Apr 04, 2002 at 20:36:04 +0200, Andreas Locatelli wrote:
> Hi All!
> I have Debian Woody running on a T23 (SuperSavage Graphics)
> with XFree 4.1.0.1...
> 
> I don't seem to be able to use an external monitor with a good refresh
> rate. All I get is 1280x1024/60 hz, but 75 or more would be much better.
> 
> I am using the savage driver from  www.probo.com/timr/savage40.html
> and setting the modeline in XF86Config is not working...
> 
> Anybody already done this ??

Once I looked into the source of the Trident driver I found out that it uses
fixed timings (60 Hz) for the LCD wich confused my monitor. It completly
ignores the timings in the supplied modeline. However, the fixed timings are
only used if an active LCD is detected. Unfortunaly, it was detected as
active even if it wasn't. I disabled this probe and hardcoded the LCD as
always being not active. This way the X server didn't ignore the timing of
the modelines anymore. Maybe you ran into a similar problem.

Tino

-- 
tino.keitel@innominate.com
dipl.-inf.                        Innominate Security Technologies AG
software engineer                                   networking people
tel: +49.30.6392-3308                      http://www.innominate.com/

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