On Wed, Oct 7, 2009 at 12:25 AM,  [off-list ref] wrote:

From: Alex Deucher <redacted>
Date: Tue, Oct 06, 2009 at 10:27:01AM -0400

quoted

radeonfb doesn't support any avivo-based radeons and never will.  If
you want hi-res consoles, use the the new radeon drm with modesetting.
 It's available in 2.6.31 and supports all r1xx-r5xx radeons.  Support
for r6xx-r7xx is available in 2.6.32.

Thanks!

It works, but I find the lack of documentation disturbing. As it is,
adding radeon.modeset=1 to the commandline switches my screen to the
correct resolution. This is partly because I have a TFT screen on this
laptop. I've not been able to find anything about changing the
resolution, so with a CRT monitor I don't know how you would go about
that.

Also, a hint or two somewhere in linux-2.6.23-rc3/Documentation/ would
be nice. At the moment, the word 'KMS' is not used in any file there. No
wonder I couldn't find it when I configured my kernel.

So far, I've seen 5 good boots and one with a hang (garbage on screen,
hanging laptop) - there's room for improvement yet.

DRM modesetting support is still a bit in flux (that's why it's in
staging).  Support for changing the console fb mode was only recently
added.  It could probably use more documentation though.

Alex

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