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    SubjectRe: KERNEL BUG: console not working in linux
    Date
    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.
    >
    > 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?

    > 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.
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