[linux-help] Re: resolution problems

[bbales <bbales@xxxxxxxxxxx>]

Dennis,
I'm no expert on this.  I assume your problem is with the X windows system 
and that you have a good text screen (mode 3).  I've had good luck by 
starting X with "startx 2 > testfile".  This sends the error messages as X 
tries to start to the file testfile.  

These errors are generated by X as it goes through XF86Config, looking for 
legal combinations of horizontal and vertical frequencies that will work with 
the numbers you put in XF86Config for your monitor.  On one I did recently, I 
got about 60 lines like this:

SVGA: Mode "800x600" needs vert refresh rate of 56.25 HZ. Deleted.

The modes run from 320x240 to 1920x1200.  Five of them were 800X600, which 
was what I wanted and what I knew my monitor would handle.  But my monitor 
spec only ran up to 55 Hz and X needed 56.25  So I told XF86Config that the 
monitor went up to 57 and got a good picture.  You may have to juggle both 
horizontal and vertical frequencies.

good luck,
bruce

On Wednesday 06 March 2002 07:00 am, you wrote:
> I have a question.  I have an old pentium 100 with 128 mb of RAM and i =
> am running into crazy problems with my video setup.  The highest =
> resolution i can run it at is something like 640X420?  If i try and set =
> it on 800X600 i get half the screen on the top and half on the bottom.  =
> linux saw the vidoe card and acknowledged it but it did not recognize my =
> monitor by type...but it did recognize it as the last option on the =
> setup list and yet the refresh rates were wrong.  so i chose a generic =
> monitor and i get what i have now...any cluesa as to how i can get =
> better resolution?  FYI i tried an ATI Rage card and it was worse...when =
> i hit test setting in setup...i would not even get a screen to display =
> to see if it looked ok.  im all ears.
>
> SSgt Dennis L. Demski Jr.
> Satellite, Wideband & Telemetry Systems
> DSN:  743-3666
> COMM:  1-316-759-3666
> MICK
>
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