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SubjectRe: [PATCH] SIS AGP vs 2.6.6-rc2
Date
Heilmann, Oliver wrote:

> Basically, if you have an SiS chipset and your machine freezes when you
> start X, try the -agp_sis_force_delay=1 option. If this fixes your
> problem add your PCI ID to sis_broken_chipsets in sis-agp.c
> Note to 746[FX] people: I'm still not sure what the differences between
> the two 746 versions and the 648 series are. If this patch does not work
> for you try playing with the agp_sis_agp_spec module option. Any
> feedback is greatly appreciated.

Hi Oliver,

SIS 655 does also require the delay workaround not to freeze.
Following, the relevant kernel log of my machine (SIS655TX with Radeon 9200):

cdj:~# dmesg |grep -i agp
Linux agpgart interface v0.100 (c) Dave Jones
agpgart: Detected SiS 655 chipset
agpgart: Maximum main memory to use for agp memory: 941M
agpgart: AGP aperture is 256M @ 0xe0000000
agpgart: Found an AGP 3.5 compliant device at 0000:00:00.0.
agpgart: Putting AGP V3 device at 0000:00:00.0 into 4x mode
agpgart: SiS delay workaround: giving bridge time to recover.
agpgart: Putting AGP V3 device at 0000:01:00.0 into 4x mode


Cheers,
Cédric Rivard
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