Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) ============
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) APM or ACPI?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) ============
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) If you have a relatively recent x86 mobile, desktop, or server system,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) odds are it supports either Advanced Power Management (APM) or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) Advanced Configuration and Power Interface (ACPI).  ACPI is the newer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) of the two technologies and puts power management in the hands of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) operating system, allowing for more intelligent power management than
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) is possible with BIOS controlled APM.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) The best way to determine which, if either, your system supports is to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) build a kernel with both ACPI and APM enabled (as of 2.3.x ACPI is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) enabled by default).  If a working ACPI implementation is found, the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) ACPI driver will override and disable APM, otherwise the APM driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) will be used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) No, sorry, you cannot have both ACPI and APM enabled and running at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) once.  Some people with broken ACPI or broken APM implementations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) would like to use both to get a full set of working features, but you
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) simply cannot mix and match the two.  Only one power management
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) interface can be in control of the machine at once.  Think about it..
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) User-space Daemons
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) ------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) Both APM and ACPI rely on user-space daemons, apmd and acpid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) respectively, to be completely functional.  Obtain both of these
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) daemons from your Linux distribution or from the Internet (see below)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) and be sure that they are started sometime in the system boot process.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) Go ahead and start both.  If ACPI or APM is not available on your
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) system the associated daemon will exit gracefully.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)   =====  =======================================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)   apmd   http://ftp.debian.org/pool/main/a/apmd/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)   acpid  http://acpid.sf.net/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)   =====  =======================================