[Bug 71769] Monitor not recognizing RGB limited/full color range

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71769

--- Comment #12 from Daniel Vetter <daniel at ffwll.ch> ---
(In reply to comment #10)
> Thanks, that seems a lot better.
> 
> I don't know if it's 100% accurate, I can see banding on a greyscale ramp.
> Do you think it's possible to map back to the original luma values after
> conversion to full range?

The compression/expansion will leave some banding artifacts behind, that's
somewhat inevitable. Afaik our hw doesn't have support to dither the colors a
bit when compressing, so we can't fix this.

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