Messages in this thread |  | | From | "Dunlap, Randy" <> | Subject | RE: KERNEL BUG: console not working in linux | Date | Mon, 27 Nov 2000 20:09:10 -0800 |
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Hi,
I've been taking some holidays and haven't followed all of this thread closely, but:
> From: Albert D. Cahalan [mailto:acahalan@cs.uml.edu] > > H. Peter Anvin writes: > > [Albert Cahalan] > >> [Alan Cox] > > >>>> 1) Why did they disable my videocard ? > >>> > >>> Because your machine is not properly PC compatible > >> > >> The same can be said of systems that don't support the > >> standard keyboard controller for A20 control.
Just curious: Are you (Alan?) saying this ("standard") based on the unpublished IBM PC specs (well, it was when I needed it around 1990; don't know about now ???). Or do you have a copy of it? They were mighty hard to come by, and I was working on a contract for IBM at the time (not at Intel).
> > Yes, it can. Unfortunately, some "legacy-free" PCs apparently > > are starting to take the tack that the KBC is legacy. Therefore, > > the use of port 92h is mandatory on those systems. > > Not just embedded systems?
Right. Not just embedded systems.
> > Port 92h dates back to at the very least the IBM PS/2. > > > > Either way, the video card of the original poster is broken in more > > ways than that. Ports 0x00-0xFF are reserved for the motherboard > > chipset and have been since the original IBM PC. > > His video card is the motherboard. He has built-in video. > So the port is being used by his motherboard chipset. > -
~Randy
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