diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn301/dcn301_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn301/dcn301_resource.c
index 346cec70de96..7d04739c3ba1 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn301/dcn301_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn301/dcn301_resource.c
@@ -702,6 +702,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 	.dmub_command_table = true,
 	.use_max_lb = false,
 	.exit_idle_opt_for_cursor_updates = true,
+	.enable_legacy_fast_update = true,
 	.using_dml2 = false,
 };