Re: [LI] SiS 6326 / Samtron 55E

[Moinak Ghosh <moinakg@xxxxxxxxx>]

Hi,

   Just FYI: I am finally a getting good performance(1024x768, 16 bit) from
   SIS6326(4 MB)/Samtron 55E combination using the XF86_SVGA server after
   tweaking the/etc/X11/XF86Config file manually to enable accleration (After
   running Xconfigurator).  
   
   The SIS6326 card supports XFree86 Accleration Architecture(XAA) but has 
   font rendering problems with all the xservers that i tried - XF86_SVGA &
   XFCom_SIS from xsis.rpm.  After looking at the XF86_SVGA manpage I found 
   that the option "xaa_no_color_exp" should be used to avoid hardware color
   expansion problem in acclerated mode.  Indeed, this option solved the 
   problem of black bars appearing in place of text.
   
   The XFree86 site provides some information for using SIS cards -
   http://www.xfree86.org/3.3.3.1/SiS.html
   
   Here's some of the values that I have set -
   
# Monitor refresh rates. Note that these values should be 
# specified according to what is given in the Monitor box/manual.
# The following values are specific to my monitor and may not
# work for you.
#
Section "Monitor"
...

    HorizSync   31.5 - 57.0
    VertRefresh 50-100
...
EndSection


# These are the values that need tweaking for optimum performance.
#
Section "Device"
    Identifier  "Silicon Integrated Systems [SiS]|86C326"
    VendorName  "Unknown"
    BoardName   "Unknown"
    VideoRam    4096
    # Option "no_accel" # Use this if acceleration is causing problems
    # Option "fifo_moderate"
    # Option "fifo_conserv"
    # Option "fifo_aggresive"
    Option "xaa_no_color_exp"
    Option "fast_vram"
    Option "pci_burst_on"
    Option "xaa_benchmark" # DON'T use with "ext_eng_queue" !!!
    # Option "ext_eng_queue" # Turbo-queue. This can cause drawing
                             # errors, but gives some accel
    # Insert Clocks lines here if appropriate
EndSection

Hope this is useful.

Regards,
Moinak.

> 
> > Because of this I was unable to install GNOME or KDE. However
> > the same configuration worked properly when I installed RHL 6.0
> > There I tried Generic VGA even though SiS6326 was mentioned.
> > Can anyone point the reason for the failure of RHL 6.1?
> 
> Your searching the archieves would have helped. BUT if you do not
> have netaccess, I think it is only fair to help you here. I am late
> in my mailing, I know and people here are requested not to flame me.
> May be it has already been answered.
> 
> Can you install [without guidance] the X server from Chip CD [RHL 6.0]?
> Else write to me personally.
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