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trying to get 16bpp under XFree86
hi. i now have XFree86 3.1.2G and i am futzing around
trying to find the right settings for 16-bit-per-pixel
mode. it occurs to me that LCD screens are so different
than normal screens that i might be making some incorrect
assumptions. for instance:
the liturature on my 760EL claims that it does 16 bits per
pixel. however, from what i know about how these screens work,
i would expect the real bit depth to be a multiple of three.
(that is, i don't think they use indexed color -- i think
they just assign brightness values to the red, green and
blue subpixels.) am i wrong about this? is the true depth
really 15, or 18 or maybe only a measley 12 bits per pixel?
i'm sure the X server would love to know, and so would i.
and if that is the case, then is the video ram really as
large as advertised? i read that i'm supposed to have
2 megs of vram, but i wonder if it's really all there.
fyi, XFree86 version 3.1.2g finally fixes the weird video
mode problems that prevented me from switching back and forth
between text and graphics screens, and required me to hit
the "switch to external screen" function key in order for
the display to work. i am very pleased with it.
-mykle-