Created attachment 118681 [details]
01:00.0 VGA compatible controller: NVIDIA Corporation GF108GLM [NVS 5200M] (rev a1)
This is a laptop; the laptop screen displays some colors as flickering vertically striped patterns, which IRC/imirkin diagnosed as unneeded dithering. Disabling dithering with xrandr fixes the issue.
Please grab a copy of envytools (github.com/envytools/envytools) and also provide the output of
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.