[Bug 30812] radeon module fails to initialize with modeset=1 on PPC32 with RV280

[<bug...@bu...>]

https://bugzilla.kernel.org/show_bug.cgi?id=30812





--- Comment #8 from Michel Dänzer <mi...@da...>  2011-03-09 14:42:27 ---
Have you tried radeon.agpmode=1 or radeon.agpmode=-1? There's a uninorth AGP
driver issue which prevents higher AGP transfer rates from working reliably
with KMS.

Actually, I see you mentioned on IRC that you tried radeon.agpmode=-1 but it
didn't help. Can you provide the corresponding dmesg output? Maybe for =1 as
well.

One thing that seems special about your card is that the PCI aperture is larger
than VRAM. Maybe there's a problem related to that, e.g. a mixup or incorrect
handling of the various *_vram_size fields.

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