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Xwin For Suse6.3 ,it configuresd my SiS 6215c,easily too and gives good results.
Xwin for Red Hat 6.1,a little more tricky and difficult work.
Xwin on Redhat :-
Background :-
Most display cards manufactured since 1996 support a display mode called FrameBuffer, accessed using standard BIOS calls using the VESA 2.0 standard. Even the infamous SiS cards support this mode.
Most recent Linux distributions include support for this mode of display,
and ship with a FrameBuffer-aware X server. A typical example is the RH6.1
CD given away with PCQUEST
VGA settings in LILO
640x480 800x600 1,024x768 1,280x1,024
256 colors 768 771 773 775
32K colors 784 787 790 793
64K colors 785 788 791 794
16M colors 786 789 792 795
We assume that you’ve installed Linux correctly, and that you didn’t manage to install X properly (otherwise you wouldn’t be reading this article). We also assume that you’re using the stock Linux kernel from the CD and have not recompiled one of your own (all RHL 6.1 kernels have VESA FrameBuffer support compiled in).
Please note that the entire procedure requires you to be logged in as root.
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Installing the software :-
Insert your November 1999 PCQ CD (or any Red Hat Linux 6.1 CD) and
mount it
mount /mnt/cdrom
Now install the required packages (some of these may already be installed,
so ignore any error messages about this fact). Pay attention to capital
and lower case letters.
cd /mnt/cdrom/RedHat/RPMS
rpm -ivh XFree86-VGA16*.rpm
rpm -ivh XFree86-FBDev*.rpm
rpm -ivh Xconfigurator*.rpm
rpm -ivh fbset*.rpm
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Testing compatibility :-
You need to make sure that our technique will work for you, so you
need to find out whether your display card has a VESA 2.0 BIOS.
To do this, reboot the system. At the LILO prompt, type the following
command:
LILO: linux 3 vga=xxx
where “xxx” is a number taken from the table above.
A safe value would be 771, which means a resolution of 800x600 and 256 colors—most monitors and display card combinations should support this. Try 773 only if you’re sure that your card has at least 2 MB RAM, and that your monitor can support a resolution of 1,024x768.
Don’t try any higher combinations for now, you can always change things later. After entering the command, for example “linux 3 vga=771”, hit Enter. What do you get? Did your screen blank out for a moment, and reappear with a little penguin in the top corner? Congratulations! You’re now in framebuffer mode, and the rest of this article should apply to you. By the way, even though you’re seeing text, you’re actually in graphics modes. So, text scrolling may be a bit slower than you’re used to, but as a compensation, you get more text on your screen.
If it didn’t work, then you either have a card with no VESA support or one that supports only VESA 1.2, or you aren’t using the default kernel shipped with Red Hat Linux 6.1. In either case, this technique won’t work for you.
If the screen blanks out or distorts, it probably means that your card supports the setting, but your monitor doesn’t. Hit Ctrl-Alt-Del and reboot the system (it might take a while, but is safe enough) and try a lower resolution.
However, assuming that it did work, we’ll move to the next step.
Step 3: Setting up LILO
Edit the file /etc/lilo.conf, and insert the following line before
the first “image” statement:
vga=xxx
where “xxx” is again the value you used while booting.
Save the file, and run the command
lilo -v
to update the LILO setup.
Reboot the system again to make sure it works—this time you should get the penguin without having to type any commands at the LILO prompt.
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Setting up your monitor :-
Now we come to the more complicated part, so pay close attention.
First of all, you need to run Xconfigurator
Xconfigurator--server VGA16
Note that there are two hyphens before “server”, and no spaces between
them or between them and the word “server”. And VGA16 is in capital alphabets.
This will set up X to use the generic VGA driver in 16-color mode. Don’t worry, we aren’t going to leave it at that—the real objective here is to specify your monitor, we’ll change the X server presently.
Xconfigurator will now prompt you for the specifications of your monitor. If you can find the exact model you have, select that, otherwise use the Custom Monitor setting. Don’t attempt to use a “similar” model—it probably won’t work for you.
If you found your exact monitor model, ignore the next few paragraphs, and go to the paragraph that talks about probing.
If you used the Custom Monitor setting, you’ll be prompted for some parameters about your monitor. This is a good time to have your monitor manual at hand. The first parameter is the horizontal sync value applicable for your monitor. Most monitors can take Extended Super VGA 800x600, though you can choose the value that’s applicable to your monitor. Check your monitor manual for details.
Next you’ll be asked for the vertical sync range. Use the values closest
to the ones in your manual.
Now Xconfigurator will ask you whether it can probe for screen resolution
and color depth. Select “Don’t probe” here. Next, you’ll be asked for the
amount of screen memory you have. Don’t lie—select the correct amount of
video memory you have. If you aren’t sure, we suggest that you select 1
MB, which is the least any card ships with today.
When asked about Clockchip Configuration, select “No Clockchip Setting”.
Select “Skip” when asked whether you wish to run “X -probeonly”.
Next you’ll be asked whether to test your X configuration. Select “Skip”
here, too.
Finally it will save the configuration.
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Now, Set up X
Next, we need to make a few changes in the X configuration file.
cd /etc/X11
Here, we’ll first make a copy of the file XF86Config.
cp XF86Config XF86Config.backup
Now edit the file XF86Config using your favorite text editor.
Scroll down and locate the part of the file called
# *****************
# Screen sections
# *****************
Just below that, you should find a section that looks like this
# The Color SVGA server
Section “Screen”
Driver “svga”
Device “Generic VGA”
Monitor “My Monitor”
Subsection “Display”
Depth 8
#Modes “640x480” “800x600” “1024x768” “1152x864”
ViewPort 0 0
EndSubsection
EndSection
You might find a difference in the “Monitor” setting—that’s okay. Duplicate
this entire section, and change it so that it looks as follows:
# The FrameBuffer Device server
Section “Screen”
Driver “fbdev”
Device “Generic VGA”
#Device “My Video Card”
Monitor “My Monitor”
Subsection “Display”
#Depth 8
Modes “default”
ViewPort 0 0
EndSubsection
EndSection
Notice that we’ve changed the driver name from “svga” to “fbdev”. We’ve
commented out the “Depth” setting, and changed the Modes statement to “default”.
The important thing is that the “Monitor” setting must not be changed.
Save the file.
Now we need to tell X to use the Framebuffer Device X server instead
of the generic VGA16 server. Run the following commands:
rm -f /etc/X11/X
ln -sf /usr/X11R6/bin/XF86_FBDev /etc/X11/X
Time to test things out. Run the command
X
Yes, that’s a single, capital alphabet—X.
Did your screen blank out, then reappear with a hatched pattern on
it, with an X-shaped mouse cursor in the center?
If so, congratulations! You have functional X. Now kill the X server
(Ctrl-Alt-Backspace), run
startx
and enjoy your functional X desktop. If it didn’t work, there could
a couple of reasons for this.
The mode you selected for the VGA setting in the LILO configuration
may not be supported by X. In many cases, we’ve found that you can only
get 256 colors, and you may have specified a higher color setting. Try
the lower settings. Like we said, 800x600 at 256 colors is a safe enough
value to try.
Your monitor may not actually support the resolution you’ve selected—try
a lower resolution.
You may have made a mistake following the steps given here. Start again
from the beginning, and be very careful.
Remember, if the screen blanks out or distorts, you can kill the X
server with a Ctrl-Alt-Backspace. This is a sign that your card can take
the settings but that you’ve configured the monitor to a higher resolution
than it can take.
However, most Cirrus Logic, Matrox, Intel i740, Trio64, and other S3 cards will work just fine. Ask on the Linux India mailing list for feedback before committing to a new card, or make sure that you test the card with Linux and X before you pay for it.
Now, one Section of people who are really commited towards Linux,
and the works http://www.ilug-bom.org.in/
It may provide some solutions to your problems
# SaX autogenerated XF86Config file
# This file was generated from the SaX
# Version: 2.8 - sax@suse.de
# Date: Wed Aug 9 02:55:09 IST 2000
#Mouse blah...blah....
I have put some sample Xf86config files here.They
are in a 7Kb Zip file...Instructions are in the Readme file.However I suggest
you try out Sax and load these files if all else fails.But Pleeeese make
a backup of your existing Xf86config file (just rename it as Xf86config.bkup).If
something fails, this site will be there,but a solution might not be there
These are Xf86config Files for different resolutions.I
use xf1 currently on my SuSe6.3 with a SiS6215c Display card having 2Mb
RAM.The resolution and color depth can be known from the file names.