Subject: Re: NetBSD/pmax 1.4 Xpmax on monochrome DS3100
To: Paul Mather <paul@gromit.dlib.vt.edu>
From: Peter C. Wallace <pcw@mesanet.com>
List: port-pmax
Date: 06/22/1999 13:35:04
On Tue, 22 Jun 1999, Paul Mather wrote:
> On Mon, 21 Jun 1999, Andy Doran wrote:
>
> => Thanks for the report Paul! Sounds like two things are wrong:
> =>
> => 1) blackPixel and whitePixel need to be 'allocated' correctly in pmax_io.c.
> => AFAIR this involves something horribly complex along the lines of:
> =>
> => blackPixel = 0;
> => whitePixel = 1;
> =>
> => 2) pixmap visuals in pmax_init.c need to be trimmed for true 1bpp.
> => This involes opening /dev/fb? and seeing whether it's monochrome,
> => then swiftly closing it off. If it's mono, kill the 8bpp pixmap depth.
> => This is a stupid limitation of DIX.
> =>
> => Can somebody handle this - Micheal, Simon? Ugh. I'm starting to really
> => regret pushing hard with development before I left Ireland.
>
> Thanks for the troubleshooting. I only have the binary sets, so is
> there any kind soul out there who could make a version of Xpmax with
> these fixes added?
>
> BTW, does anyone know where I might obtain a colour framebuffer SIMM for
> my DECstation 3100, to replace the monochrome one? I have a working
> VRC-16 monitor lying around, which I could presumably use, thereby
> allowing me to enjoy X in glorious technicolour!
I have a couple of extras if you want one
(I'm in California, and if you want a _colour_ SIMM I guess your not...)
>
> (Am I right in assuming it is just a matter of changing the SIMM to go
> from 1bpp -> 8bpp on the DS3100?)
>
> Cheers,
>
> Paul.
>
> e-mail: paul@gromit.dlib.vt.edu
>
> "I don't live today; maybe tomorrow..."
> --- James Marshall Hendrix
>
>
Peter Wallace
Mesa Electronics