[Bug 25408] Radeon KMS doesn't work for RS600

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=25408





--- Comment #29 from Pauli <suokkos at gmail.com>  2010-02-22 02:14:21 PST ---
Chase Douglas  wrote on 2010-02-18: 
"I worked with shankao through private emails to bisect to the first commit
that causes issues for him. Here's the output of the bisection (note that the
tree is the ubuntu-lucid git tree hosted at kernel.ubuntu.com):

1369d982cea341524032a248b1f31832bb8c3eb6 is first bad commit
commit 1369d982cea341524032a248b1f31832bb8c3eb6
Author: Alex Deucher <alexdeucher at gmail.com>
Date: Thu Dec 3 16:18:19 2009 -0500

    drm/radeon/kms: fix vram setup on rs600

    commit 722f29434e72188b2d20f9b41f4b5952073ed568 upstream.

    also fix up rs690 mem width.

    should fix fdo bug 25408

    Signed-off-by: Alex Deucher <alexdeucher at gmail.com>
    Signed-off-by: Dave Airlie <airlied at redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh at suse.de>
    Signed-off-by: Andy Whitcroft <apw at canonical.com>

:040000 040000 9bf615ab33dfcdcbd7aff53c51389705be954ba7
0f1789164ca98d79a64a7afbbbe843fa5803f02d M drivers

--

At first inspection, this commit does modify the driver for the graphics card
present in shankao's system, so the bisection does seem to have found the
culprit.

However, this change comes from the -stable tree upstream. Thus, it is odd that
the 2.6.32.2 mainline kernel booted, but not our 2.6.32-10 kernel. The most
likely scenario is some odd interaction between one of our patches and this
change.

I am going to do some further investigating to try to figure out where to go
from here."


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