How to know when poweroff button is pressed

Message

davidsb · Post by **davidsb** » Fri Nov 12, 2004 12:36 pm

How can you get a "signal" when the poweroff button is pressed, someway like in WinXP, when you press the poweroff button and windows automatically closes/kills apps and does a proper shutdown. Is this easy to acomplish in linux? You press the powerbutton off and shutdown is iniciated. How can one do that in linux?

Lupin_III · Post by **Lupin_III** » Fri Nov 12, 2004 1:24 pm

If you use acpi is very simple.

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emerge acpid

Then you will find in /etc/acpid/events/power

Is the script that run when u press the power botton.

shutdown -h now in this file does the trick.

HTH

SerfurJ · Post by **SerfurJ** » Sun Nov 28, 2004 7:09 pm

i don't have a /etc/acpid/events/power

all i have is:

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root # ls -R /etc/acpi/
/etc/acpi/:
default.sh  default.sh~  events

/etc/acpi/events:
default  default~

where do i add shutdown -h?

davidsb · Post by **davidsb** » Wed Dec 01, 2004 2:58 pm

I also have the same doubt

atom · Post by **atom** » Wed Dec 01, 2004 5:01 pm

you need to start the acpi init script

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/etc/init.d/acpi start

or

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rc-update add acpi default

the power button will be monitored by default and shutdown on press.

davidsb · Post by **davidsb** » Sat Dec 04, 2004 2:33 pm

I already have that started but can't see a /etc/acpid/events/power
Any thing missing?

Gentree · Post by **Gentree** » Sun Dec 05, 2004 7:27 pm

I think he was suggesting adding the scritp called power with the command shutdown -h now in it.

SerfurJ · Post by **SerfurJ** » Sun Dec 05, 2004 7:31 pm

i think he probably has an old version of acpid and the new location of
/etc/acpid/events/power is /etc/acpi/default.sh

Gentree · Post by **Gentree** » Sun Dec 05, 2004 8:36 pm

lupin wrote emerge acpid , correct.

Then he wrote :Then you will find in /etc/acpid/events/power

Either a slip or a different version . After a new emerge as above I have /etc/acpid/events

Atom wrote: /etc/init.d/acpi start

wrong , this should be acipd (note the d for daemon)

after that open /etc/acpi/events/default , read the comments, edit in the shutdown command and save as 'power'.

SerfurJ · Post by **SerfurJ** » Sun Dec 05, 2004 9:12 pm

i don't have an /etc/acpid directory, only /etc/acpi. i get the idea now. thanks for translating.