This is a note to let you know that I've just added the patch titled drm/i915: Refresh that status of MST capable connectors in ->detect() to the 4.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-i915-refresh-that-status-of-mst-capable-connectors-in-detect.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From fc22b787890f9f9067fd130feec42297a4ee62ba Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@xxxxxxxxxxxxxxx> Date: Fri, 21 Oct 2016 16:44:38 +0300 Subject: drm/i915: Refresh that status of MST capable connectors in ->detect() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> commit fc22b787890f9f9067fd130feec42297a4ee62ba upstream. Once we've determined that the sink is MST capable we never end up running through the full detect cycle again, despite getting HPDs. Fix tht by ripping out the incorrect piece of code responsible. This got broken when I moved the long HPD handling to the ->detect() hook, but failed to remove the leftover code. Cc: Ander Conselvan de Oliveira <conselvan2@xxxxxxxxx> Cc: drm-intel-fixes@xxxxxxxxxxxxxxxxxxxxx Cc: Rui Tiago Matos <tiagomatos@xxxxxxxxx> Tested-by: Rui Tiago Matos <tiagomatos@xxxxxxxxx> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98323 Cc: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> Tested-by: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> References: https://bugs.freedesktop.org/show_bug.cgi?id=98306 Fixes: 1015811609c0 ("drm/i915: Move long hpd handling into the hotplug work") Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Link: http://patchwork.freedesktop.org/patch/msgid/1477057478-29328-1-git-send-email-ville.syrjala@xxxxxxxxxxxxxxx Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> (cherry picked from commit 1aab956c7b8872fb6976328316bfad62c6e67cf8) Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/intel_dp.c | 10 ---------- 1 file changed, 10 deletions(-) --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4323,21 +4323,11 @@ static enum drm_connector_status intel_dp_detect(struct drm_connector *connector, bool force) { struct intel_dp *intel_dp = intel_attached_dp(connector); - struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); - struct intel_encoder *intel_encoder = &intel_dig_port->base; enum drm_connector_status status = connector->status; DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id, connector->name); - if (intel_dp->is_mst) { - /* MST devices are disconnected from a monitor POV */ - intel_dp_unset_edid(intel_dp); - if (intel_encoder->type != INTEL_OUTPUT_EDP) - intel_encoder->type = INTEL_OUTPUT_DP; - return connector_status_disconnected; - } - /* If full detect is not performed yet, do a full detect */ if (!intel_dp->detect_done) status = intel_dp_long_pulse(intel_dp->attached_connector); Patches currently in stable-queue which might be from ville.syrjala@xxxxxxxxxxxxxxx are queue-4.8/drm-i915-refresh-that-status-of-mst-capable-connectors-in-detect.patch queue-4.8/drm-i915-assume-non-dp-port-if-dvo_port-is-hdmi-and-there-s-no-aux-ch-specified-in-the-vbt.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html