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From: Greg KH on 22 Apr 2010 15:50
2.6.32-stable review patch. If anyone has any objections, please let us know.

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

From: Alex Deucher <alexdeucher(a)gmail.com>

commit 08d075116db3592db218bfe0f554cd93c9e12505 upstream.

On systems with the tv dac shared between DVI and TV,
we can only use the dac for one of the connectors.
However, when using a digital monitor on the DVI port,
you can use the dac for the TV connector just fine.
Check the use_digital status when resolving the conflict.

Fixes fdo bug 27649, possibly others.

Signed-off-by: Alex Deucher <alexdeucher(a)gmail.com>
Signed-off-by: Dave Airlie <airlied(a)redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>

---
drivers/gpu/drm/radeon/radeon_connectors.c | 5 +++++
1 file changed, 5 insertions(+)

--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -140,12 +140,14 @@ radeon_connector_analog_encoder_conflict
{
struct drm_device *dev = connector->dev;
struct drm_connector *conflict;
+ struct radeon_connector *radeon_conflict;
int i;

list_for_each_entry(conflict, &dev->mode_config.connector_list, head) {
if (conflict == connector)
continue;

+ radeon_conflict = to_radeon_connector(conflict);
for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
if (conflict->encoder_ids[i] == 0)
break;
@@ -155,6 +157,9 @@ radeon_connector_analog_encoder_conflict
if (conflict->status != connector_status_connected)
continue;

+ if (radeon_conflict->use_digital)
+ continue;
+
if (priority == true) {
DRM_INFO("1: conflicting encoders switching off %s\n", drm_get_connector_name(conflict));
DRM_INFO("in favor of %s\n", drm_get_connector_name(connector));


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