Re: Acer TM636 won't wakeup after S3, USB, i8042

[Dmitry Torokhov <dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

On Tue, 11 Jan 2005 09:23:04 -0700, Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org> wrote:
> On Tue, 2005-01-11 at 15:12 +0100, Tim Dijkstra wrote:
> > On Mon, 10 Jan 2005 21:12:55 -0500
> > Dmitry Torokhov <dtor_core-yWtbtysYrB+LZ21kGMrzwg@public.gmane.org> wrote:
> > > Kernel attempts to resume keyboard controller but it is so dead that
> > > it's not responding to even the basic command...
> >
> > OK, that's definitely not good... Does somebody has an idea what the
> > problem could be? Maybe what to do about it?
> 
> Have you tried booting with "pci=routeirq"?  If you have
> CONFIG_PNPACPI=y, can you try turning that off?  And these
> patches fix a known suspend/resume issue:
> 
>    http://www.ussg.iu.edu/hypermail/linux/kernel/0501.0/0284.html
>    http://www.ussg.iu.edu/hypermail/linux/kernel/0501.0/0548.html
> 

These patches are for swsusp and Tim is complaining about S3 resume.
I'd still try routeirq and disabling PNPACPI though.

My understanding that i8042 is not a standalone piece nowadays and is
usally part of a kitchen sink^W^W SuperIO microcontroller which has to
be properly setup by BIOS before kernel can access the part that
emulates i8042. It looks that in some cases ACPI(?) misses this step
and when i8042.c tries to restore KBC parameters it fails to respond.
But I am not sure.

-- 
Dmitry


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