Arch Linux

tomdbike

Member

Registered: 2008-09-07

Posts: 25

Running a script when switching battery and ac automaticly?

Hello,

How can I run a script (ran by root) automaticly when switching from battery to ac and ac to battery?
I bet its easy but I don't know where to start.

Thanks,
Tom

pointone

Wiki Admin

From: Waterloo, ON

Registered: 2008-02-21

Posts: 379

Re: Running a script when switching battery and ac automaticly?

man acpid

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whargoul

Member

From: Odense, Denmark

Registered: 2005-04-04

Posts: 546

Re: Running a script when switching battery and ac automaticly?

$ pacman -S laptop-mode-tools

Last edited by whargoul (2008-10-14 00:33:40)

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Profjim

Member

From: NYC

Registered: 2008-03-24

Posts: 658

Re: Running a script when switching battery and ac automaticly?

laptop-mode-tools is overkill. All you need is acpid and pm-utils.

I have acpid watch for various events, including the events whose $2=AC or ACAD and whose $4=00000000 when AC is removed, and whose $4=00000001 when AC is restored. Your own acpi events may look slightly different.

I have my acpi handler run "/usr/sbin/pm-powersave true" when the AC is removed and "... false" when the AC is restored. That runs all the scripts distributed with pm-utils in the /usr/lib/pm-utils/power.d/ directory, and also all the scripts I've put in the /etc/pm/power.d directory.

You'll have to read up on acpi and pm-utils to understand how to get this all working, but it's not too hard. Good luck.

tomdbike

Member

Registered: 2008-09-07

Posts: 25

Re: Running a script when switching battery and ac automaticly?

laptop-mode-tools is overkill. All you need is acpid and pm-utils.

I have acpid watch for various events, including the events whose $2=AC or ACAD and whose $4=00000000 when AC is removed, and whose $4=00000001 when AC is restored. Your own acpi events may look slightly different.

I have my acpi handler run "/usr/sbin/pm-powersave true" when the AC is removed and "... false" when the AC is restored. That runs all the scripts distributed with pm-utils in the /usr/lib/pm-utils/power.d/ directory, and also all the scripts I've put in the /etc/pm/power.d directory.

You'll have to read up on acpi and pm-utils to understand how to get this all working, but it's not too hard. Good luck.

Thanks for pointing me in the right direction