Bug 62976: UEFI + SUMO [6550D] freeze after loading radeon - David Heidelberg (okias) <david@ixit.cz> - 4/1/2013 Back to Bug | Your Reviews | Help
Attachment 77331: Possible fix - Alex Deucher <alexdeucher@gmail.com> - 4/2/2013 (View )

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From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 2 Apr 2013 13:22:17 -0400
Subject: [PATCH] drm/radeon: avoid moving the MC vram location
When setting up the memory controller, avoid moving
the vram location if possible. This should avoid
problems with hangs and corruption at boot especially
on UEFI systems due to invalid reads from the display
hardware when try and move the location of vram.
May fix:
https://bugs.freedesktop.org/show_bug.cgi?id=43655
https://bugs.freedesktop.org/show_bug.cgi?id=62976
et al.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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