Messages in this thread | ![/](/images/icornerl.gif) | | Date | Mon, 28 Jul 2003 16:29:52 +0200 | From | Stefan Reinauer <> | Subject | Re: 2.6.0-test2 has i8042 mux problems |
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* 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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