Was it Dale Dunlea who wrote on Tuesday 05 February 2002 16:17:
> Hi all,
> Does anyone have experience with the SiS630 chipset. According to the
> archives, Padraig's laptop uses it and has had no problems. But my
> machine has a CRT monitor and I am getting terrible refresh rates. I'm
> running SuSE 7.1.
>> Normally I'd spend half the night googling, downloading and messing with
> it, but I'm currently without net access at home so I was kinda hoping
> for a quick-fix.
>> Thanks in advance.
I'm running a similarly crippled SiS 6326 video card on one machine, and
hacked the modelines by hand to get it to play. Here they are. The limitation
I have is that I have a 17" monitor which tops out at 48 Khz. My 14" will go
up to 54khz. The trick is to go as fast (both figures) as you can with it.
Don't forget to check the horizontal and vertical frequencies allowable for
your monitor. Unless you've a big one, most recent monitors have a good
spread. I have moved up the top horizontal freq. figure on some limited
monitors (3 khz at a time) until I get a screwy picture; then move it back
down 3 khz. Likewise with the vertical refresh figure. The X people say it'll
blow some monitors; it doesn't worry me (I'm in Electronics Hardware Repair),
but it might worry you.
# 640x480 @ 85 Hz, 43.27 kHz hsync
Modeline "640x480" 36 640 696 752 832 480 481 484 509 -HSync
# 800x600 @ 72 Hz, 48.0 kHz hsync
Modeline "800x600" 50 800 856 976 1040 600 637 643 666 +hsync
# 1024x768 @ 60 Hz, 48.4 kHz hsync
Modeline "1024x768" 65 1024 1032 1176 1344 768 771 777 806 -hsync
If you still have problems, try
startx > xerrors 2>&1
and read xerrors. That will say why the thing is dumping modes. It could be
something as stupid as not being able to set the dot clock for the particular
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