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XFree86 with RedHat 5.0 linux problem

Posted on 1998-04-09
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Last Modified: 2013-12-15
I have installed RedHat 5.0 linux on a pentium machine with
video card SiS 6215 and Aamazing monitor. This works fine
with W95, but I cannot make XWindows run reasonably under linux.
When I use Xconfigurator I get the following in XF86Config
file:
Device: My Video Card
        VideoRam 1024
...
Screen Driver svga
       Device My Video card
       Monitor My Monitor
Display
       Modes 640x480 800x600 1024x768
       Virtual 320 200
...
When I call startx, it fails with a message:
     640x480 too large for virtual 320 200

When I change to Virtual 640 480
I get junk on the screen - top of the screen has a nuber of
overlapping transparent windows with a very low resolution
(320x200?) and the lower part of the screen is a jumble of
vertical lines and dosts of various colors. There are also several images of the cursor. The only thing I seem to be
able to do at this stage (short of hard reboot) is to manage
to place one of the cursor in the ghostly Main window and
execute "reboot".
If I change XF86Config file so that I have
   Device "Generic VGA"

then with Virtual 320 200 I get windows but with a very low resolution, totally unacceptable. If I try to change Virtual to higher resolutions (after changing also VideoRam from
default to 1024) I get the same junk on the screen as above.
BTW, the same monitor works well with another machine running Slackware 3.0 linux (2.0.13).
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Question by:andrzej
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mzito earned 100 total points
ID: 1631530
The problem is not your monitor, but your card.  The sis 6215 chipset is not supported by XFree86 3.3.2  According to SiS, they have given the programming specs to the XFree86 group, but support will not exist until at least the next release.  Your options are to get a new card (something cheap and generic) until the next release, or  (my real reccomendation ) try the generic SVGA driver. It might work. Also, look at  the following website: http://www.xfree86.org/3.3.2/SiS.html for compatibility info.  I wouldn't hold my breath, though.  It will also work with the generic VGA driver, but as you said, the resolution is intolerable.  You  might have to go out and spend $25 and get a PCI 1 Meg Cirrus board.  Sorry I can't give you any good news.

Best Wishes,
Matthew Zito
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Author Comment

by:andrzej
ID: 1631531
I am not sure what you mean by "trying the generic SVGA driver".
As you can see from part of my XF86Cinfig file, I am specifying
there Screen Driver "svga". I also have XF86_SVGA file in
X11R6/bin subdirectory and I specify SVGA server when I use
Xconfigurator to create the Config file. Is this not enough?
The only place I have "Generic VGA" is when defi8nig Device, but
how do I define "Generic SVGA" device? Xconfigurator creates
Device "My Video Card".
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Expert Comment

by:mzito
ID: 1631532
Oh, I missed that little section that said you already tried the generic SVGA. In that case, you are indeed out of luck.  Your only option is to try to find a commercial X server to fit your needs, or buy a new graphics card.  My reccomendation is to buy a new graphics card. Sorry.

Best Wishes,
Matt Zito
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