[PATCH] Radeon driver fixes

Benjamin Herrenschmidt benh at kernel.crashing.org
Fri Nov 12 17:20:22 PST 2004

On Sat, 2004-11-13 at 00:41 +0100, René Rebe wrote:
> Hi Ben,
> Benjamin Herrenschmidt wrote:
> > Here's a new version of the patch, changing the option to "VGAAccess",
> > and setting it OFF by default on PowerPC and ON by default on all other
> > archs (which mean it should do the right thing in most cases now). The
> > best would be to have a way to detect wether the card was actually in
> > a VGA mode without touching the VGA registers ... and based on that
> > decide wether to touch them or not... Is that possible at all ?
> I tested your patch applied to the 6.8.1 release on my 800Mhz G3 iBook with:
> 00:10.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility 
> M7 LW [Radeon Mobility 7500]
> But it does not fix the native video mode setup. Without "UseFBDev" I 
> still get the same flickering noisy lines .

Have you set Option "LVDSProbePLL" "true" ? I added this option to work
around this spefific problem.

> I have some gross hack applied to my private tree, that is not yet fully 
> polished, to use native mode setup and so use the Crt2. Too bad my 
> current patch is just a big hack.


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