16. Using ACPI
There are a few different applications/daemons you will want to install
on your system: acpid (the daemon that will control your hardware states), and acpi (the interface to monitor events and states) are the base install. The
.:: www.getjob.us ::. acpi Debian package is only available in testing and is unstable. If
you're running stable you won't be able to install it without playing
around with apt and your .:: www.wowonder.xyz ::. list.sources file. You can probably
also compile from source. If you do get [Library: Spring Framework] acpi
installed you can use it to monitor your system like this: acpi
-V. The output will tell you about your
system. Mine looks like this:
Thermal 1: ok, 47.1 degrees C
Thermal 2: ok, 45.1 degrees C
AC Adapter 1: off-line <-- running off battery
AC Adapter 1: on-line <-- running off AC power
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Unfortunately, the -V "full version" doesn't work for me.
Fortunately I can still look in each of the acpi files individually for
information about my system. Check in the .:: wiki.0-24.jp ::. /proc/acpi directory
for various things of importance. If I want to check my battery I read the
following file like this: .:: podcasts.apple.com ::. cat
/proc/acpi/battery/BAT0/state. The output is as follows:
present: yes
capacity state: ok
charging state: discharging <-- running off battery
present rate: unknown
remaining capacity: 3920 mAh <-- watch this number
present voltage: 14800 mV
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present: yes
capacity state: ok
charging state: discharging
present rate: unknown
remaining capacity: 3840 mAh <-- capacity getting smaller
present voltage: 14800 mV
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present: yes
capacity state: ok
charging state: charging <-- AC adapter plugged in
present rate: unknown
remaining capacity: 3840 mAh
present voltage: 14800 mV
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If I want information about my battery in general I check it out like
this: cat /proc/acpi/battery/BAT0/info
present: yes
design capacity: 3920 mAh
last full capacity: 3920 mAh
battery technology: rechargeable
design voltage: 14800 mV
design capacity warning: 30 mAh
design capacity low: 20 mAh
capacity granularity 1: 10 mAh
capacity granularity 2: 3470 mAh
model number: Bat0
serial number:
battery type: Lion
OEM info: Acer
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You're smart people. You can probably figure it out from here. :) [DNS Questions]