From 23882c85d97acaf626ace83e2feabd46393a1b6a Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 3 Oct 2011 08:37:33 -0400 Subject: [PATCH] drm/radeon/kms: Fix logic error in DP HPD handler commit 5ba7ddf81634bfdf32d09261d2959e3f5b7c4263 upstream. Only disable the pipe if the monitor is physically disconnected. The previous logic also disabled the pipe if the link was trained. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=41248 Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/radeon/radeon_connectors.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index d1b36f83029..05b8b2cbd4f 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -68,11 +68,11 @@ void radeon_connector_hotplug(struct drm_connector *connector) if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) { int saved_dpms = connector->dpms; - if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) && - radeon_dp_needs_link_train(radeon_connector)) - drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON); - else + /* Only turn off the display it it's physically disconnected */ + if (!radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); + else if (radeon_dp_needs_link_train(radeon_connector)) + drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON); connector->dpms = saved_dpms; } } -- 2.11.4.GIT