Found EDID byte 14 value was 0x80 that report unknown color depth. Based on monitor's spec to add it into quirk list. Cc: Jani Nikula <jani.nikula@xxxxxxxxx> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Cc: Cooper Chiou <cooper.chiou@xxxxxxxxx> Signed-off-by: Lee Shawn C <shawn.c.lee@xxxxxxxxx> --- drivers/gpu/drm/drm_edid.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 474ac04d5600..58dfc6332fd2 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -140,6 +140,9 @@ static const struct edid_quirk { /* LGD panel of HP zBook 17 G2, eDP 10 bpc, but reports unknown bpc */ { "LGD", 764, EDID_QUIRK_FORCE_10BPC }, + /* HP z27x monitor support max 10 bpc, but reports unknown bpc */ + { "HWP", 0x3105, EDID_QUIRK_FORCE_10BPC }, + /* LG Philips LCD LP154W01-A5 */ { "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE }, { "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE }, -- 2.17.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel