Subject: Re: KB/Mouse/Framebuffer on 3000/600
To: Ross Harvey <ross@ghs.com>
From: Jason Thorpe <thorpej@nas.nasa.gov>
List: port-alpha
Date: 07/21/1999 11:00:01
On Wed, 21 Jul 1999 10:50:33 -0700 (PDT)
Ross Harvey <ross@ghs.com> wrote:
> > No matter... onward we go! I've gotten conflicting information regarding
> > the compatibility of the keyboard, mouse, and PMAG frame buffer in the
> > 3000/600. Can someone please give me a definitive answer as to...:
> >
> > 1). Are the aforementioned devices supported or not for 1.4 and up?
> >
> > 2). If they are not now supported, will they be in times to come?
> >
> > 3). What is the obstacle to supporting those three for X11 and/or NetBSD?
>
> I'll send a later email on the status of the console. There is no X server,
> although a NetBSD developer has reverse engineered some part of the interface.
> Without access to the accelerations, though, I doubt if we could do a good
> X server.
Actually, with regards to a PMAG X server, "it depends" :-)
(1) What sort of PMAG display card do you have? There is:
PMAG-AA monochrome frame buffer (simple)
PMAG-BA color frame buffer (simple)
PMAG-CA PixelStamp Graphics Accellerator (hard)
PMAG-DA PixelStamp 3D Graphics Accellerator (harder)
We have MI drivers for the PMAG-AA (mfb) and PMAG-BA (cfb). These
frame buffers are very simple... no accellerators. Frame buffer and
RAMDAC. X servers are easy, and there is already X server code available
for them for the DECstation port.
PMAG-CA and PMAG-DA ... the DECstation port has a driver for them (px),
which is REALLY FAST in text mode :-) There is an X server available
for them, I think, but it's not great.
-- Jason R. Thorpe <thorpej@nas.nasa.gov>