Advanced Power Management (APM) is an API developed by Intel and Microsoft, which allows BIOS to perform power management.
These days it is outdated and replaced by ACPI (The Advanced Configuration and Power Interface).
Under Linux to find out if, Advanced Power Management support available or not you need to type following commands:
$ apm_available
$ echo $?
It returns three values:
- 0 (true) : APM subsystem is available
- 1 (false): APM subsystem is not available
- 2 : Usage error (arguments supplied)
You can also try out following command:
$ apm_available && echo "Yes" || echo "No APM support"
You can use following command to test whether ACPI subsystem is available or not:
$ acpi_available && echo "Yes" || echo "No APM support"
Want to read Linux tips and tricks, but don't have time to check our blog everyday? Subscribe to our daily email newsletter to make sure you don't miss a single tip/tricks. Subscribe to our weekly newsletter here!
{ 0 comments… add one now }