Re: Bug#347186: linux-image-2.6.14-2-alpha-generic: garbled Matrox framebuffer

[maximilian attems <maks@sternwelten.at>]

dear adaplas,

could you please take a look at this matroxfb debian bug report:
http://bugs.debian.org/347186

On Mon, 09 Jan 2006, Steve Langasek wrote:

<snipp>
> > > Sigh, can't get a break with alpha kernel support around here.  After
> > > upgrading to 2.6.14 (from 2.4.27), the Matrox framebuffer no longer works
> > > correctly on my alpha with a Matrox Millenium II.  The matroxfb_base module
> > > loads without error, but gives me corrupt video output only.
> 
> > Try turning off acceleration.
> 
> Doesn't make a difference.
> 
> What did make a difference was, after googling, loading fbcon manually
> before loading matroxfb_base.  Given that I'm loading matroxfb_base by hand
> (/etc/modules), it's not getting loaded via udev or anything like that, it
> seems to me that it's my responsibility to load fbcon by hand as well, but
> it's still something of an unexpected change from 2.4.  It might be nice to
> have these modules all autoloaded by something, but it's not strictly
> necessary, and some users may not want the framebuffer activated
> automatically?
> 
> The other issue (and the first thing I was trying to get work, which led me
> to believe the fb was completely broken) is that, even though console works
> on the framebuffer now, X does not.  This breakage corresponds to the kernel
> upgrade, not to any changes in X, so still looks like a kernel bug to me.
> 
> If I turn off "UseFBDev" in my xorg.conf, X displays correctly.  I haven't
> poked yet to see what this does performance-wise.
> 
> -- 
> Steve Langasek                   Give me a lever long enough and a Free OS
> Debian Developer                   to set it on, and I can move the world.
> vorlon@debian.org                                   http://www.debian.org/

2.6.15 has matroxfb patches, did it make a difference on your box?


-- 
maks


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