Mail Archives: djgpp/1997/04/08/23:55:03
In article <5id9j3$6sb AT news DOT flashnet DOT it>,
Cristiano Muzi <reboot AT fr2 DOT flashnet DOT it> wrote:
>
>PS: Perhaps my problem is a problem of bios or videocard. A demo of
>Allegro 2.2 and a test program crash my pc when they try to use linear
>addressing :((
>
>I have a dx2/66, a vlb cirrus logic 5428 and I use univbe 5.1. Is
>here my problem ??
>
I also have a dx2/66 and a vlb cirrus logic 5428. If you have
more than 16MB of RAM, your cirrus logic will turn stupid on
you and won't know how to map its memory to a linear frame
buffer for your use. According to the documentation from
XFree86 (an X Server for Linux), the cl5428 likes to map its
LFB at somewhere around 14MB or 16MB. I'm not sure about the
exact details, but the main point was that system memory
overlapped with where the LFB was mapped to, and that's apparently
not a Good Thing.
--
beppu AT uci DOT edu .............................................................
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