Ubuntu
acpi package

  1. Bug #235539
  2. Comment #4

Comment 4 for bug 235539

Revision history for this message
Lars Ola Liavåg (l-liavag) wrote :

Hello there,

I got exactly the same problem when upgrading from Gutsy to Hardy, or probably rather after running the update manager afterwards. I've played around in BIOS to find a solution but without luck and went on to test boot parameters more or less randomly. After testing a parameter sequence I found on an Ubuntu forum for solving a somewhat different problem, the situation now seems OK. No more spontaneous booting at midnight. The trick was to boot the kernel with acpi=off and apm=power_off. Additionally, the line

apm power_off=1

must be added to /etc/modules. I don't understand why I need to make these changes. My BIOS is supposed to support both APM and ACPI, even though the computer admittedly is getting old, and why didn't I have any problems with Feisty or Gutsy. Beats me, but you could try it out and see if it helps even in your case.