diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 0a68a4b17b7db00e6f6643ce5182d56e760d4b30..93ec0c8322b228aafbd05371aa8c87d5fcb926b0 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -1508,6 +1508,9 @@ static void ltdc_plane_atomic_disable(struct drm_plane *plane,
 	/* Disable layer */
 	regmap_write_bits(ldev->regmap, LTDC_L1CR + lofs, LXCR_LEN | LXCR_CLUTEN |  LXCR_HMEN, 0);
 
+	/* Reset the layer transparency to hide any related background color */
+	regmap_write_bits(ldev->regmap, LTDC_L1CACR + lofs, LXCACR_CONSTA, 0x00);
+
 	/* Commit shadow registers = update plane at next vblank */
 	if (ldev->caps.plane_reg_shadow)
 		regmap_write_bits(ldev->regmap, LTDC_L1RCR + lofs,