3.11.10.7 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Alex Deucher <alexander.deuc...@amd.com>

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.deuc...@amd.com>
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>
---
 drivers/gpu/drm/radeon/atombios_encoders.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c 
b/drivers/gpu/drm/radeon/atombios_encoders.c
index 56ed69e..f0d8cb1 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -1297,7 +1297,7 @@ atombios_dig_transmitter_setup(struct drm_encoder 
*encoder, int action, uint8_t
                        }
                        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;
-- 
1.9.1

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