commit: 73104b5cfe3067d68f2c2de3f3d4d4964c55873e From: Alex Deucher <alexander.deuc...@amd.com> Date: Tue, 9 Aug 2011 17:09:06 +0000 Subject: [PATCH] drm/radeon/kms: don't enable connectors that are off in the hotplug handler
If we get a hotplug event on an connector that is off, don't attempt to turn it on or off, it should already be off. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=728228 Signed-off-by: Alex Deucher <alexander.deuc...@amd.com> Cc: sta...@kernel.org Signed-off-by: Dave Airlie <airl...@redhat.com> --- drivers/gpu/drm/radeon/radeon_connectors.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 6d6b5f1..519b5e2 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -60,6 +60,10 @@ void radeon_connector_hotplug(struct drm_connector *connector) radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd); + /* if the connector is already off, don't turn it back on */ + if (connector->dpms != DRM_MODE_DPMS_ON) + return; + /* powering up/down the eDP panel generates hpd events which * can interfere with modesetting. */ _______________________________________________ stable mailing list stable@linux.kernel.org http://linux.kernel.org/mailman/listinfo/stable
