AGP does't work with an SIS760 motherboard and a geforce 6200

[Aldo Nogueira]

Binary package hint: nvidia-glx

Motherboard: PCCHIPS M871G with SIS760GX/964 chipset.
Processor: Sempron 2500+ (AMD64).
Video board: Nvidia GeForce 6200 256Mb.

The system crashes if I try to use X with NvAGP other than 0 (no AGP).

dmesg says:
  agpgart: Detected SiS 760 chipset
  agpgart: AGP aperture is 4M @ 0xe0000000
Even thou I set aperture to 256mb at boot setup.

Also, lsmod says:
amd64_agp 13252 0
sis_agp 9284 1
agpgart 37072 3 nvidia,amd64_agp,sis_agp

On Breezy, amd64_agp module is not loaded.

I've tried it on Breezy and Dapper 32 bits.
Strangely it works on both Breezy and Dapper for AMD64 archtecture.

Thanks

[Aldo Nogueira (aldo-nogueira)]

Guys, it is working on Dapper 32 bits.

I just renamed 'sis-agp.ko' to 'sis-agp.ko.bak' and everything worked.
On dmesg, agpgart says aperture is 256mb as I set in boot setup and
nvidia-settings also says it is AGP8x now.

I will try something like this on Breezy, since I still didnt change to Dapper.

[Alan Jenkins (aj504)]

I can confirm the presence of this problem on my computer, with both breezy and dapper, running in 32 bit mode. My motherboard is a "WinFast 760GXK8MC".

Jun 1 19:39:14 localhost kernel: [4294684.202000] Linux agpgart interface v0.101 (c) Dave Jones
Jun 1 19:39:14 localhost kernel: [4294684.204000] agpgart: Detected SiS 760 chipset
Jun 1 19:39:14 localhost kernel: [4294684.204000] agpgart: AGP aperture is 4M @ 0xd8000000

[Alan Jenkins (aj504)]

Fix also confirmed. Thanks a lot!

[Alan Jenkins (aj504)]

Fix unfortunately breaks hibernate and sleep (STR), which are more important to me at the moment. I guess I should try 64bit mode again some time.

[Aldo Nogueira (aldo-nogueira)]

I've just upgraded the system to kernel 2.6.15-25-k7, including restricted modules. The upgrade-manager asked me to reboot my system, as expected. For my "surprise", the system crashed as soon the X started.

I had to rename sis-agp.ko as I told you before to get a chance to complain about this bug again.

I think X window is more important than hibernate. And I know how to fix this problem, but not everyone can do it.

Could you fix this packages, please.

[Enrico Sardi (enricoss)]

This fixed the bug #34144 too. When I renamed the sis_agp.ko, glxinfo reported "direct rendering: Yes" and now all works nicely...

[Aldo Nogueira (aldo-nogueira)]

The same freeze happens in Edgy 32, but renaming sis_agp.ko fixes it.

Also, in Edgy 64, AGP works fine.

[Timo Aaltonen (tjaalton)]

Have you tried on Feisty if sis-agp works with the newer kernel?

[Timo Aaltonen (tjaalton)]

sorry, I'll mark this as a dupe of bug 34144

[Launchpad Janitor (janitor)]

[Expired for linux-restricted-modules-2.6.20 (Ubuntu) because there has been no activity for 60 days.]