diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index a27563bfd909..3f65d890b8a9 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4089,6 +4089,8 @@ int intel_dp_retrain_link(struct intel_encoder *encoder,
 		    !intel_dp_mst_is_master_trans(crtc_state))
 			continue;
 
+		intel_dp->link_trained = false;
+
 		intel_dp_check_frl_training(intel_dp);
 		intel_dp_pcon_dsc_configure(intel_dp, crtc_state);
 		intel_dp_start_link_train(intel_dp, crtc_state);