[ltp] T22 halt including powering off - ACPI or APM

[Daniel Maier]

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On Thu, Jun 08, 2006 at 11:32:27AM +0200, Matthias Keller wrote:
> > You both seem to experience the same problem with ACPI on the T22 as
> > I did. The ACPI events stop working and if this happens, also
> > powerdown does not work any more.
> >
> > Stop any process which might read /proc/acpi and try if this occurs
> > again. ACPI events can be followed with /usr/bin/acpi_listen.
> >  =20
> I tried experimenting but didn't get a solution yet
> /proc/acpi seems only to be used by acpid:
>=20
> COMMAND  PID USER   FD   TYPE DEVICE SIZE       NODE NAME
> acpid   2142 root    3r   REG    0,3    0 4026532101 /proc/acpi/event
>=20
That is why you need acpi_listen to follow the events while acpid is
running. The file can be opened only by one process.
> acpi_listen doesn't produce anything in normal operation. I see events
> when closing and opening the lid but nothing else
You should also get events from battery, ac, FN+F4 etc.
> Do you have any other hints what in the end solved your problems?
If this event are still working before shutdown, poweroff should
work. I just know that poweroff does not work, when ACPI is dead (=3D
does not produce any events) and that ACPI events might die.
Interestingly, the power button event always works here.

Regards, nusse.

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