Corrupt SiS display on new debian

Happy Gimper · 03-02-2008, 02:21 PM

Hi!

I've just installed new debian system (kernel 2.6.18-6-486) on my computer and on the first boot on my debian, I got my display corrupted!
What should I do?

My video card is

Code:

$ lspci | grep VGA
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 661/741/760/761 PCI/AGP VGA Display Adapter (rev 03)

These are modules for my video card:

Code:

~$ lsmod | grep sis
sis_agp                 8452  0
agpgart                29360  1 sis_agp
sata_sis                8452  3
libata                 87700  1 sata_sis
sis5513                12552  0 [permanent]
ide_core              107760  3 ide_cd,sis5513,generic

The problem may be that I don't have a suitable driver for my video card.:

Code:

$ dmesg | grep agp
Linux agpgart interface v0.101 (c) Dave Jones
agpgart: Unsupported SiS chipset (device id: 0761)

I tried vesa driver and it displayed a beautiful screen but don't want to use it because it is not DRI compatible.

Thank you.

elliott678 · 03-02-2008, 02:46 PM

Quote:

I tried vesa driver and it displayed a beautiful screen but don't want to use it because it is not DRI compatible.

Depending on exactly which SiS chipset you have, it may not be DRI capable with the current drivers anyway.

EDIT: Actually, I'm pretty sure you can't have it with what you have:

Quote:

There is no DRI support for the SiS 315/550/650/651/740/661/741/760/330.

http://www.winischhofer.net/sisdri.shtml

I have a 741, I can tell you that there is absolutely no advantage to the sis driver over vesa.

Happy Gimper · 03-03-2008, 04:24 AM

Thank you again.

Yes, you are right. Vesa is a generic graphics driver and not optimised for my card therefore DRI uncapable.

I cound solve this problem by reducing the resolution.
I found the solution for the display corruption from the web site (http://www.winischhofer.eu/linuxsispart1.shtml#12) you offered me. It says:

Quote:

And please don't complain about "driver bugs" if you see "flashing lines" (display corruption) on the screen; these are the typical effects of a bandwidth problem and unavoidable - even the Windows driver can't do better. In such cases, reduce the resolution and/or refresh rate and/or color depth, or use one output (CRT1 or CRT2) only.

OMG!! My SiS761 chipset was DAMN SLOW!!! That's where the problem is!
It seems to be IMPOSSIBLE to enable DRI on my computer according to this article.
I should have buy one with a dedicated local framebuffer memory!

P.S. How did you find this web site? I'ts totally incredible if you found it easily.

elliott678 · 03-03-2008, 04:31 AM

That is basically what I was telling you, the chipset is junk and a clear screen with vesa is the best you can hope for. DRI would be a pipe dream, even with the sis drivers.

I was very dissapointed a couple years ago when I learned my laptop had an SiS 741 chipset. Now if I am buying a laptop or anything with integrated graphics, I want nothing but Intel.

Quote:

P.S. How did you find this web site? I'ts totally incredible if you found it easily.

I remembered it from when I went through the same issues years ago.

Happy Gimper · 03-03-2008, 05:06 AM

thank you elliot.

Im gonna unsubscribe this thread and immediately go to the PC store.

"Wintel" was not so bad as I thought.