Re: iMac-G3 fails to boot with 2.6.37-1-powerpc (Bug#614221)
On Mon, Mar 7, 2011 at 10:45:18 +0100, Michel Dänzer wrote:
> On Mon, 2011-03-07 at 02:24 +0000, Ben Hutchings wrote:
> > On Sat, 2011-03-05 at 20:43 +0000, Ben Hutchings wrote:
> > [...]
> > > * Could some Mac users test and report whether i915 or nouveau can
> > > successfully take over the display from offb in 2.6.37 or 2.6.38-rc6?
> >
> > i915 on a powerpc, eh? What was I thinking?
> >
> > I've now talked briefly to the DRI and powerpc upstream maintainers, and
> > the answer is that radeon is mostly broken on at least 32-bit powerpc [...]
>
> 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?
> * 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?
That seems to be a56f7428d7534f162fbb089c5c79012bf38a7c29 upstream.
> * 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.
>
Cheers,
Julien
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