--- a/drivers/gpu/drm/i915/intel_dp.c 2018-07-28 01:57:19.000000000 -0400 +++ b/drivers/gpu/drm/i915/intel_dp.c 2018-08-02 01:47:36.226528951 -0400 @@ -1845,15 +1845,15 @@ if (intel_conn_state->broadcast_rgb == INTEL_BROADCAST_RGB_AUTO) { /* * See: * CEA-861-E - 5.1 Default Encoding Parameters * VESA DisplayPort Ver.1.2a - 5.1.1.1 Video Colorimetry */ pipe_config->limited_color_range = - bpp != 18 && + (bpp != 18 && bpp != 24) && drm_default_rgb_quant_range(adjusted_mode) == HDMI_QUANTIZATION_RANGE_LIMITED; } else { pipe_config->limited_color_range = intel_conn_state->broadcast_rgb == INTEL_BROADCAST_RGB_LIMITED; }