Subject: Re: KB/Mouse/Framebuffer on 3000/600
To: None <thorpej@nas.nasa.gov>
From: Ross Harvey <ross@ghs.com>
List: port-alpha
Date: 07/21/1999 11:19:01
> From: Jason Thorpe <thorpej@nas.nasa.gov>
>
> 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.
Well, he told us earlier that he had a "PMAG-C". That sounded like
a PX series board to me, so, (1) undocumented and (2) unsupported.
I would love to be wrong...
ross.harvey@computer.org