From: jb3207 AT eclipse DOT co DOT uk (Jason Barstow)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: HELP: vesa 2 & linear framebuffering
Date: Wed, 16 Apr 1997 17:17:42 GMT
Organization: Jabber Interactive
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References: <5id9j3$6sb AT news DOT flashnet DOT it> <5ieqiu$m9t AT news DOT service DOT uci DOT edu>
Reply-To: jb3207 AT eclipse DOT co DOT uk
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beppu AT rigel DOT oac DOT uci DOT edu (John Beppu) wrote:

>In article <5id9j3$6sb AT news DOT flashnet DOT it>,
>Cristiano Muzi <reboot AT fr2 DOT flashnet DOT it> wrote:
>>I have a dx2/66, a vlb cirrus logic 5428 and I use univbe 5.1.  Is
>>here my problem ??
>>
>  According to the documentation from
>  XFree86 (an X Server for Linux), the cl5428 likes to map its
>  LFB at somewhere around 14MB or 16MB.

From memory I believe it's at 15MB. Some BIOSs (eg.mine)
allow you to leave a "hole" in main memory so the linear
mapping can work. Check this. Also newer versions of univbe 
(perhaps even your version) allow you to turn LFB off. Of
course this isn't a solution if you're relying on the LFB
on being available.