• Benjamin Herrenschmidt's avatar
    [PATCH] nvidiafb: Add flat panel dither support · b8c49ef6
    Benjamin Herrenschmidt authored
    nvidiafb didn't fully hook-up the code it borrowed from X for doing flat
    panel dithering (this is useful for 6 bits panels).  This adds a driver
    option to force it, and by default "reads" the current value from the chip
    to get the firmware setting.  It significantly improves the quality of
    images on the iMac G5 I have here (though the X driver doesn't yet "read"
    the current value and defaults to 0, so you have to add Option "FBDither"
    "true" to your X config file to get that, I'll try to fix X.org to "read"
    the default unless specified asap).
    Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: "Antonino A. Daplas" <adaplas@hotpop.com>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
nvidia.c 50.6 KB