by I have a Cirrus chip 5428 VLB display controller, brandname
unknown, with 2 MB of memory, and XFree86 version 3.1
running on Linux 1.1.54 (with 16 MB memory).
I have read all of the documentation that came with the
X system (it was on Slackware 2.0.2) and appear to be
doing things correctly. However, every time I have
tried to enable 16-bit mode, the system
first displays weird graphics, then hard-crashes.
I was warned in the documentation that this might happen,
but went ahead anyway :-). I suspect this is because
my VLB motherboard is slightly chintzy when it comes
to addressing, and maps 0x04e0000 to 0x00e0000,
trashing my main memory and forcing a reboot.
Or maybe it's my card.
Is there a small program that exists somewhere that can
verify this? Ideally said program would run in DOS mode
(ugh), taking over the machine (like so many DOS programs do :-).
However, it doesn't have to.
Also, does anyone out there have any ideas to try, short
of replacing hardware (which I might do if I have to) to
get 16 or 32 bit to work, or will I just have to pay
for a new video board or new motherboard (or (gag) both)?
Thanks in advance.
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