Re: iMac-G3 fails to boot with 2.6.37-1-powerpc (Bug#614221)
On Mon, 2011-03-07 at 10:45 +0100, Michel Dänzer wrote:
>
> I've been using radeon KMS on my PowerBook ever since I got it working
> initially about 1.5 years ago and fixing issues as time permits.
>
> The major outstanding issues I'm aware of are:
>
> * The uninorth AGP driver doesn't allow AGP transfer rates beyond
> 1x to work reliably with KMS. Benjamin Herrenschmidt (CC'd) was
> working on a fix for this, any progress Ben?
I have hacks. But I never got it working reliably. In fact, on the
laptop I have here, even with PCI GART, it's still unstable if I use
KMS/DRI2.
> * Come to think of it, the OFfb handover probably only works for
> me thanks to a patch "drm/radeon: Add early unregister of
> firmware fb's" by BenH. Ben/Dave, what's the status of that?
Dave ? Was this ever merged ?
> * LVDS backlight control was only added for 2.6.38, and some
> concerns were raised about the prerequisite backlight
> infrastructure changes, so I'm not sure if it's staying in for
> 2.6.38 final.
> * No suspend to RAM support yet. Suspend to disk seems to work
> though without AGP, I have some hackish fixes for it to work
> with AGP as well that I need to clean up and submit.
> * Various endianness issues in the Mesa drivers.
Right, and the later aren't getting any better :-( It's busted even
without KMS nowadays.
Unfortunately, I have about 0 time to spend on that at the moment.
I recommend that distros stick to radeonfb + UMS for the time being on
ppc32.
Cheers,
Ben.
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