Connectors with a shared ddc line can be connected to different
encoders.
Reported by Pasi K?rkk?inen <pasik at iki.fi> on dri-devel
Signed-off-by: Alex Deucher <alexdeucher at gmail.com>
Cc: stable at kernel.org
---
drivers/gpu/drm/radeon/radeon_connectors.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c
b/drivers/gpu/drm/radeon/radeon_connectors.c
index 0c7ccc6..f58f8bd 100644
--- 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_dvi_detect(struct
drm_connector *connect
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);
--
1.7.0.1
