diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index f88a631..2164c99 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1016,6 +1016,7 @@
 	.vsync_end = 272 + 2 + 4,
 	.vtotal = 272 + 2 + 4 + 2,
 	.vrefresh = 74,
+	.flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
 };
 
 static const struct panel_desc nec_nl4827hc19_05b = {