Mail Archives: djgpp/1997/04/23/19:36:08
Dr. Andras Sólyom wrote:
>
> I think this has been answered many times in the past, but I was not
> interested in it then... I have Allegro 2.2 I have no problem with it on
> my 100 MHz Pentium system (40Mbyte mem.20Mbytes free HDD), but on a 486
> DX2 66Mhz system (16 Mbyte memory, 50Mbyte free HDD) most of the demos
> locks up the machine after the graphics detection screen.
> The same Djgpp 2 distribution is installed on both machine and I
> compiled the demos on the target machine (it should not make any
> difference). Can anyone tell me what could be wrong? Thanks.
The VBE/AF driver had this effect on my machine (486/66 with an
ATI Mach32). I'm not sure if this is the case with everyone else
-- but in any event, if you want to find out, try recompiling a
program to use the VESA_2L driver instead of GFX_AUTODETECT
(which will use VBE/AF first if available). If it works after doing
that, then try altering graphics.c so that it doesn't use VBE/AF
as an autodetected driver, then recompile the entire lib. From
then on, Allegro won't use VBE/AF unless you explicitly tell it
to.
I imagine this problem will be gone in the future, once the VBE/AF
driver is more rigorously tested and debugged. That's the
impression I got after exchanging a little bit of mail on the subject
with the author of Allegro, in any event.
Cheers,
William Lachance
billl AT synapse DOT net
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