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    SubjectRe: 2.6.0-test2 has i8042 mux problems
    * dean gaudet <dean-list-linux-kernel@arctic.org> [030728 04:13]:
    > i've got a box on which 2.4.x works fine, but 2.6.0-test2 gets into a snit
    > when it's trying to initialize the i8042. i can get 2.6.0-test2 to boot
    > if i add "i8042_nomux".
    >
    > the mux initialization code seems kind of ... wonk -- it seems to write
    > values to the registers then read back and if the value is the same then
    > it assumes the mux is there. that seems way too likely to be broken in
    > situations when the mux isn't there... it'd be better to be looking for
    > some value which is different after writing.
    >
    > the southbridge in this system is the ali1563. if it helps i can supply a
    > complete trace of in/out on ports 0x60 and 0x64.

    I can confirm this. I have an Amilo A laptop with the following sb:
    00:07.0 ISA bridge: ALi Corporation M1533 PCI to ISA Bridge [Aladdin IV]

    without "i8042_nomux" the keyboard is recognized fine, but no mouse is
    found on the mux. With the option everything works fine.

    Stepan


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