acpi questions

From: Garst R. Reese (
Date: Thu Aug 03 2000 - 03:16:23 EST

1. What do these error messages mean?
 in /var/adm/debug
This is on an IBM Thinkpad 380D
Aug 1 22:03:12 aar acpid: ACPI Subsystem version [Jun 1 2000]
Aug 1 22:03:12 aar acpid: tbutils-0240:
Aug 1 22:03:12 aar acpid: *** Error: Invalid ACPI table checksum
Aug 1 22:03:12 aar acpid: nsapinam-0058:
Aug 1 22:03:12 aar acpid: DSDT is not in memory
Aug 1 22:03:12 aar acpid: OsdBreakpoint: Fatal error encountered
2. from pm.txt
  "If a working ACPI implementation is found, the
ACPI driver will override and disable APM, otherwise the APM driver
will be used."
What is meant here by -working-
3. Does anybody have acpi working to their advantage?
4. What does DSDT stand for?
5. Do any of the above error msgs make sense to anybody.
6. Is there any *real* advantage to acpi vs apm?
7. Has it been implemented in *any* drivers?

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