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    SubjectRe: PROBLEM: PS/2 keyboard does not work with 2.6.15
    On 1/10/06, Vojtech Pavlik <vojtech@suse.cz> wrote:
    > On Tue, Jan 10, 2006 at 10:12:21AM -0500, Alan Stern wrote:
    > > On Tue, 10 Jan 2006, Vojtech Pavlik wrote:
    > >
    > > > It's usually that the BIOS does an incomplete emulation of the i8042
    > > > chip, while still getting in the way to the real i8042. Usually GRUB and
    > > > DOS don't care about sending any commands to the i8042, and so they
    > > > work. The Linux i8042.c driver needs to use them to enable the PS/2
    > > > mouse port and do other probing, and if the commans are not working, it
    > > > just bails out.
    > > >
    > > > The question of course is why the handoff code doesn't work on that
    > > > platform.
    > >
    > > It turned out that a BIOS upgrade fixed the problem, but this doesn't
    > > answer your question.
    > >
    > > The problem wasn't an incomplete emulation of the i8042, because when the
    > > USB handoff code was commented out the PS/2 keyboard worked okay. This
    > > means the handoff, when enabled, wasn't being done correctly. That could
    > > be the fault of the USB drivers or the BIOS (or both). We have no way to
    > > tell which, because the users have all switched to the newer BIOS.
    >
    > As usual with BIOS interaction problems.
    >

    We'll just have to wait for another report. "Sluggish typing" report
    looks promising.

    --
    Dmitry
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