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Title: Graphic cards with the SiS 6326 Chipset

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Graphic cards with the SiS 6326 Chipset

Applies to

XFree86: Versions since 3.3.3

Symptom:

YOu have a graphic card with the SiS 6326-Chipset. After you configure it with the XFree86-3.3.3 SVGA-Server you notice the following maladies: In addition you may see other malformed images, for example perhaps the server does not even come up and in the worst case the computer may freeze. If you have sucessfully configured your graphic card with our suggestion below or another configuration, or if you are recieving different errors, we are interested in hearing from you!

Reason:

The SiS 6326-Chipsatz is still not fully supported.

Solution:

You must manually edit the file /etc/XF86Config and insert the following lines in the 'Device' section:
      Option "sw_cursor"
      Option "no_accel"
      Option "no_linear"
At a minimum everything should work with 8bpp.

Proceduren:

Use the xf86configuration tool to configure the SVGA server for your graphic card. After completing the configuration, edit the file /etc/XF86Config as described below. The example shown below is for a Diamond SpeedStar A50. Find the Device section of the file -- it looks something like this:
Section "Device"
   Identifier      "Diamond SpeedStar A50"
   VendorName      "Diamond"
   BoardName       "SpeedStar A50"
Modify the section by adding the "option" lines as shown below:
Section "Device"
   Identifier      "Diamond SpeedStar A50"
   VendorName      "Diamond"
   BoardName       "SpeedStar A50"
   Option          "sw_cursor"
   Option          "no_accel"
   Option          "no_linear"

Alternative:

You have a working X server, but it produces poor results. You should first verify that you have a cuurrent version of your X server. You can check the release date of your X server with the following command:
       /usr/X11/bin/X -showconfig
Either the second or third line of ouput will say somehting like:
 
Release Date: January 4 1999 
An alternative would be the command:
       /usr/X11/bin/XF86_SVGA -showconfig
       /usr/X11/bin/X -version  (undocumented)
If the X server has a pre November 1998 release date, then you should update your server. You need the SVGA Server for your chipset. Instructions on how to update your X server are given in this SDB acticle:
      Update to XFree86-3.3.3.1 

2. Solution:

As a result of the work of one of our customers, H. Shultz, it is possible to obtain 24 bpp on some boards:
Insert the following options into the "Device" section of the
/etc/XF86Config file.  This should be added to the existing information in
that section.

#####################
Option		"no_accel"
Option		"no_imageblt"
Option		"sw_cursor"
dacspeed	135
Option		"fast_vram"
Option		"no_bitblt"
VideoRam	8192
#####################

with these options it is possible to use 24 bbs.  
[...]
I have been using these configuration options for X on my computer about a month, with 
relative sucess.
Warning!
If you are having problems with this solution (unreproducible freezing, poor icture quality, flickering etc.), try the first solution. Unfortunately we cannot take any responsibility for damage to your system from these recommendataions ;-(

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See also:

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Keywords: XSERVER, XFREE, GRAPHIC CARD, SIS, 6326, GRAPHIC, CHIPSET, X, WINDOW, XWINDOW

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Categories: Graphic cards , X Server

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SDB-jd_diamond_a50, Copyright SuSE GmbH, Nuremberg, Germany - Version: 19. Jan 1999
SuSE GmbH - Last generated: 07. Oct 1999 16:44:05 by maddin with sdb_gen 1.00.0