Only specific event status indicators caused the link status to be acked. Be sure to ack the link status change event. Arguably we should track which bits to actually clear in ESI instead of the wholesale approach. Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_dp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index a3368c30bc3b..82388112e062 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -3698,6 +3698,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp) esi[3] & LINK_STATUS_CHANGED) { if (!intel_dp_mst_link_status(intel_dp)) link_ok = false; + handled = true; } intel_dp_mst_hpd_irq(intel_dp, esi, &handled); -- 2.30.2