4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Kai-Heng Feng <[email protected]> commit 25da75043f8690fd083878447c91f289dfb63b87 upstream. Another panel that reports "DFP 1.x compliant TMDS" but it supports 6bpc instead of 8 bpc. Apply 6 bpc quirk for the panel to fix it. BugLink: https://bugs.launchpad.net/bugs/1788308 Cc: <[email protected]> # v4.8+ Signed-off-by: Kai-Heng Feng <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/gpu/drm/drm_edid.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -110,6 +110,9 @@ static const struct edid_quirk { /* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */ { "CPT", 0x17df, EDID_QUIRK_FORCE_6BPC }, + /* SDC panel of Lenovo B50-80 reports 8 bpc, but is a 6 bpc panel */ + { "SDC", 0x3652, EDID_QUIRK_FORCE_6BPC }, + /* Belinea 10 15 55 */ { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 }, { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
