This is a note to let you know that I've just added the patch titled
drm/radeon/atom: select the proper number of lanes in
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-radeon-atom-select-the-proper-number-of-lanes-in.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d03874c881a049a50e12f285077ab1f9fc2686e1 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Thu, 6 Mar 2014 18:09:52 -0500
Subject: drm/radeon/atom: select the proper number of lanes in
transmitter setup
From: Alex Deucher <alexander.deucher@xxxxxxx>
commit d03874c881a049a50e12f285077ab1f9fc2686e1 upstream.
We need to check for DVI vs. HDMI when setting up duallink since
HDMI is single link only. Fixes 4k modes on newer asics.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=75223
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/atombios_encoders.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -1048,7 +1048,7 @@ atombios_dig_transmitter_setup(struct dr
}
if (is_dp)
args.v5.ucLaneNum = dp_lane_count;
- else if (radeon_encoder->pixel_clock > 165000)
+ else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
args.v5.ucLaneNum = 8;
else
args.v5.ucLaneNum = 4;
Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are
queue-3.4/drm-radeon-atom-select-the-proper-number-of-lanes-in.patch
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