I have an IBM thinkpad 760el with a Trident Cyber9385 (as reported by
SuperProbe; I think it has other names like TGUI9660). It has 1024Kb video
ram. That's enough for 800x600x16.
I am trying to get framebuffer running so that I can get 800x600 text mode
and use the full 12.1 in display. It does not work when I compile it into
the kernel. On boot up it merely says VGA 80x25. I suspected my bios is
not vesa 2.0 compliant, but when I set kernel to vga=ask, it says VESA
somewhere in there (not sure exactly where). When I probe for more modes,
it finds none. Entering standard vesa modes returns "invalid mode."
I talked to IBM and the technician told me that vesa 2.0 is a very old
standard. My laptop was made in 1993.
If I compile the VGA framebuffer (16 color), I get a boot logo :) (which, at
the end of the boot process, changes to messed up colors??). But I cannot
get to 800x600 using fbset. It says "ioctl FBIOPUT_VSCREENINFO: Invalid
argument" When I change fb.modes to use 4 bit color instead of 8, then it
"works." I guess that makes sense because VGA 16 wouldn't support 8 bit
color....
So in 4 bit, things happen, but I get a corrupt screen, I see the very left
edge three and a half times. I am using my converted X-modeline. X runs
fine in 800x600x(8|16).
Is it possible to use vesa framebuffer on this laptop/video card? Am I
doing anything wrong?
--
Pat Mahoney <[EMAIL PROTECTED]>
For children with short attention spans: boomerangs that don't come back.
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