Ask Klaus!
Author(s): Klaus Knopper
Power Management No matter which Linux distribution I’m using, I never can get the power management features to work on my Intel-based laptop. The system either doesn’t sleep, or it breaks something on its way down. How do I identify what the problem is, and what can I do to get power management working? A couple of years ago, there used to be a thing called “Automatic Power Management” or APM (which still works well even on some newer computers, even if the board description claims it’s no longer supported). With APM, the hardware took care of CPU fan speed, CPU power consumption, battery issues, suspend-to- ram, and even suspend-to-disk, and the operating system could blissfully ignore these functions.
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