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SubjectRe: [PATCH v3 6/9] drm/bridge: ti-sn65dsi86: Use 18-bit DP if we can

On Thu, Jul 9, 2020 at 6:19 PM Steev Klimaszewski <> wrote:
> Hi Doug,
> I've been testing 5.8 and linux-next on the Lenovo Yoga C630, and with this patch applied, there is really bad banding on the display.
> I'm really bad at explaining it, but you can see the differences in the following:
> 24bit (pre-5.8) -
> 18bit (5.8/linux-next) -

Presumably this means that your panel is defined improperly? If the
panel reports that it's a 6 bits per pixel panel but it's actually an
8 bits per pixel panel then you'll run into this problem.

I would have to assume you have a bunch of out of tree patches to
support your hardware since I don't see any device trees in linuxnext
(other than cheza) that use this bridge chip. Otherwise I could try
to check and confirm that was the problem.


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