Messages in this thread Patch in this message | | | Date | Mon, 15 Aug 2011 19:43:06 -0700 | From | Greg KH <> | Subject | [23/26] drm/radeon/kms: dont enable connectors that are off in the |
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3.0-stable review patch. If anyone has any objections, please let us know.
------------------ hotplug handler
From: Alex Deucher <alexander.deucher@amd.com>
commit 73104b5cfe3067d68f2c2de3f3d4d4964c55873e upstream.
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.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/gpu/drm/radeon/radeon_connectors.c | 4 ++++ 1 file changed, 4 insertions(+)
--- 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 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. */
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