linux-kernel - Re: Regression 2.6.34+ -> 2.6.34-rc5: radeon KMS rs780 problems

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Message-ID: <1279605606.9986.113.camel@thor.local>
Date:	Tue, 20 Jul 2010 08:00:06 +0200
From:	Michel Dänzer <michel@...nzer.net>
To:	Ed Tomlinson <edt@....ca>
Cc:	linux-kernel@...r.kernel.org, Alex Deucher <alexdeucher@...il.com>,
	dri-devel@...ts.freedesktop.org
Subject: Re: Regression 2.6.34+ -> 2.6.34-rc5: radeon KMS rs780 problems

On Mon, 2010-07-19 at 23:00 -0400, Ed Tomlinson wrote: 
> On Monday 19 July 2010 10:34:20 Michel Dänzer wrote:
> > On Sam, 2010-07-17 at 18:56 -0400, Ed Tomlinson wrote: 
> > > 
> > > My 790gx chipset supplies an rs780.  With .34+ all is ok.
> > > With .35-rc5 basic function seems ok (kde works) but games like
> > > extreme tux racer have problems.  The cursor does not display when on
> > > the tux racer window and various objects flicker on and off as I
> > > attempt to play the game.   
> > 
> > Sounds like it might be
> > https://bugs.freedesktop.org/show_bug.cgi?id=28341 . Does the X driver
> > patch attached there fix the problem?
> 
> Michel,
> 
> xf86-video-ati git from today fails.  Applying the revert patch in the above message
> fixes the problem.  Its an interesting bug in that the kernel change triggers the 
> driver bug.  Might be a good idea to get this fixed, one way or another, before
> -35 gets released?

It's basically a userspace bug, the buggy userspace code is just only
active with new functionality in the new kernel.


-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer
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