Linux in a Nutshell, 6th Edition

Name

apmd

Synopsis

apmd [options]

System administration command. apmd handles events reported by the Advanced Power Management BIOS driver. The driver reports on battery level and requests to enter sleep or suspend mode. apmd will log any reports it gets via syslogd and take steps to make sure that basic sleep and suspend requests are handled gracefully. You can fine-tune the behavior of apmd by editing the apmd_proxy script, which apmd runs when it receives an event. Note that the APM hardware standard has been replaced by the ACPI (Advanced Configuration and Power Interface) standard, and apmd by acpid.

Options

-c n, --check n

Set the number of seconds to wait for an event before rechecking the power level. Default is to wait indefinitely. Setting this causes the battery levels to be checked more frequently.

-p n, --percentage n

Log information whenever the power changes by n percent. The default is 5. Values greater than 100 will disable logging of power changes.

-P command, --proxy command

Specify the apmd_proxy command to run when APM driver events are reported. This is generally a shell script. The command will be invoked with parameters indicating what kind of event was received. The parameters are listed in the next section.

-T [n], --proxy-timeout [n]

Set time-out for proxy to n seconds. Without this option apmd will wait indefinitely for the proxy to finish. Default value of n is 30 seconds.

-v, --verbose

Verbose mode; all events are logged.

-V, --version

Print version and exit.

-w n