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From: Greg KH on 30 Jul 2010 14:40
2.6.34-stable review patch. If anyone has any objections, please let us know.

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

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

commit b2ea4aa67bfd084834edd070e0a4a47857d6db59 upstream.

Connectors with a shared ddc line can be connected to different
encoders.

Reported by Pasi Kärkkäinen <pasik(a)iki.fi> on dri-devel

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 | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -785,7 +785,9 @@ static enum drm_connector_status radeon_
if (connector == list_connector)
continue;
list_radeon_connector = to_radeon_connector(list_connector);
- if (radeon_connector->devices == list_radeon_connector->devices) {
+ if (list_radeon_connector->shared_ddc &&
+ (list_radeon_connector->ddc_bus->rec.i2c_id ==
+ radeon_connector->ddc_bus->rec.i2c_id)) {
if (drm_detect_hdmi_monitor(radeon_connector->edid)) {
if (connector->connector_type == DRM_MODE_CONNECTOR_DVID) {
kfree(radeon_connector->edid);


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