Messages in this thread |  | | Subject | Re: [PATCH] drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA | From | Mario Kleiner <> | Date | Sun, 18 Feb 2018 13:17:25 +0100 |
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On 02/18/2018 09:53 AM, Kai-Heng Feng wrote: > Similar to commit e10aec652f31 ("drm/edid: Add 6 bpc quirk for display > AEO model 0."), the EDID reports "DFP 1.x compliant TMDS" but it support > 6bpc instead of 8 bpc. > > Hence, use 6 bpc quirk for this panel. > > Fixes: 196f954e2509 ("drm/i915/dp: Revert "drm/i915/dp: fall back to 18 bpp when sink capability is unknown"") > BugLink: https://bugs.launchpad.net/bugs/1749420 > Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> > --- > 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 ddd537914575..d9c8d718e261 100644 > --- a/drivers/gpu/drm/drm_edid.c > +++ b/drivers/gpu/drm/drm_edid.c > @@ -113,6 +113,9 @@ static const struct edid_quirk { > /* AEO model 0 reports 8 bpc, but is a 6 bpc panel */ > { "AEO", 0, EDID_QUIRK_FORCE_6BPC }, > > + /* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */ > + { "CPT", 0x17df, EDID_QUIRK_FORCE_6BPC }, > + > /* Belinea 10 15 55 */ > { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 }, > { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 }, >
Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
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