Arch Linux

Try regenerating your xorg.conf using Xorg -configure, and please attach your complete Xorg.0.log. The quoted parts in your forum posts are useless. I guess this is a regression in the sis driver.

Sure, here are the files.

The logs indicate you're running 24 or 32bpp, is this still a problem with the attached xorg.conf?

Yes, the colors are still wrong. This is kinda hard to describe. The wallpaper in some places looks fine, but I can see some blue pixels flickering. White icons have yellowish spots, like coffee stains. Also, the scrollbars in firefox are yellowish, instead of grey.

Can you show us a screenshot of the artifacts you are experiencing?

Sure, I attach the files. The first one is a picture of my wallpaper, blue pixels should be seen, while in the second one I've photographed the icon which normally should be white.

You are using the SIS driver. Does this also happen when using the VGA or VESA driver?

Yes, the colors with the VESA driver are fine, but now I've got 800x600 resolution...

OK, I've resolution 1024x768 with the auto-generated xorg.conf, with the VESA driver. I guess this is good until the SiS driver is fixed.

Can you please post a bugreport for this at the xorg team, with the full details? You may post a link to the report here.

OK

Is this still an issue with xorg-server from testing? There's one upstream commit that affects colors in the new package.

Dunno, I've reported this to xorg, but didn't get a reply. I'll check today if it works.

Nope, this didn't help. As I said, I didn't yet get any reply for the bug...

@ Przemyslaw K.
Could You attach a link to Your bug report? Because I also reported it (in bugs.freedekstop.org), but with no response.
Here is this report:
http://bugs.freedesktop.org/show_bug.cgi?id=19104
and also launchpad widely-commented one:
https://bugs.launchpad.net/ubuntu/+bug/264769

It seems Thomas Winischhofer, the author of the sis driver, is hardly available now. Please, comment at launchpad if You have any further information about the issue.

Sure, here it is
https://bugs.freedesktop.org/show_bug.cgi?id=19070

It seems for me adding sisfb do /etc/modules solved the problem.

NOTE: sisfb module *MUST* be loaded at start. It means that it's not enough to load it using 'modprobe sisfb' and restarting X server. It *MUST* be added to /etc/modules, after a reboot it starts to work.

If it doesn't, You can always try a solution proposed by Fernando Pereira:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-sis/+bug/264769/comments/60

I get it that Arch will always require people to deal with configuration files. The problem is, adding sisfb to active modules is not a solution, only a workaround; whereas the original SiS driver can work on their own after applying a proper fix not involving the sisfb module.

The 'sisfb solution' *DECREASES* graphics performance - I checked it with newest Ubuntu where I had to turn it on - on the left side of the screen there are strange white flashing lines - they're thin, but annoying. I suppose it's caused by sisfb; without the module, graphics card worked quite OK. So for me this is a bug.

If You still think it should be closed it's Your decision but I think Arch should try to really fix it, like in Gentoo they did.

You're not saying that Gentoo doesn't require from its users messing with conf files? And they fixed it, though.

See http://bugs.gentoo.org/show_bug.cgi?id=240248

It seems here:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-sis/+bug/264769
there is a solution for latest stable Ubuntu (jaunty); current beta remains unfixed.

The latest fix from kendatsuba, provided at launchpad, solves the problem for me. See comments:
https://bugs.launchpad.net/bugs/264769