[Bug 111583] 30 bit colors causing banding with default settings

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111583

--- Comment #12 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
(In reply to helios.solaris from comment #11)
> (In reply to Ville Syrjala from comment #10)
> > Shouldn't be too difficult for someone to port over the intel ddx gamma code
> > to the modesetting ddx.
> 
> It happens with both, the modesetting and the intel driver as well.

How fresh of a snapshot is your intel ddx. The code went in somewhat recently:

commit 60022507b80e3c123db2c88b6e0f0f1dee5d3a4f
Author:     Ville Syrjälä <ville.syrjala at linux.intel.com>
AuthorDate: Fri May 17 16:51:01 2019 +0300
Commit:     Chris Wilson <chris at chris-wilson.co.uk>
CommitDate: Wed Jul 10 12:59:10 2019 +0100

    sna: Support 10bpc gamma via the GAMMA_LUT crtc property

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