Ubuntu
linux-source-2.6.17 package

  1. Bug #43961
  2. Comment #112

Comment 112 for bug 43961

Revision history for this message
Frank Bennett (fgbjr) wrote :

This cured up on my home desktop system by making two changes. One was to add the kernel boot options "acpi=force lapic", as suggested above.

The second change was to use "halt -p" or "poweroff" to shut down the machine.

This may strike everyone here as silly, but back in the day I do seem to remember shutting down APM enabled laptops with a simple "halt" or "shutdown -h now". This used to cause a powerdown at the end of the cycle. It doesn't any longer, apparently, and the man pages do not lie. Could it me that this is an added gotcha for people trying to sort out this problem (which is a genuine problem -- halt -p was failing for me previously, when I tried it).

The machine is based on an AOpen i945GTm-VHL socket 479 (Pentium-M) motherboard. Locally compiled 2.6.17.13 kernel. APM is disabled, ACPI is enabled. Software suspend is enabled. Boot options are:

  root=/dev/sda1 ro acpi=force lapic quiet splash vga=788

Other details are in the attached file.