[Nouveau] [Bug 92297] dithering detected incorrectly

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92297

--- Comment #3 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Well, unless I'm misreading the bios (entirely possible), the FP data pointed
to by the offset in BIT table 'L' suggests that it's not a 8bpc screen.

bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4];

lvdsmanufacturerpointer = 56df

and 0x56e3 == 0. So nouveau is correctly turning on dithering based on the
information available to it. However perhaps that information isn't trustworthy
for fermi+. Or perhaps there's another bit somewhere.

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