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[Bug 69880] Re: SMP-enabled kernels need an APM module option to power off on APM-only systems

 

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/69880

Title:
  SMP-enabled kernels need an APM module option to power off on APM-only
  systems

Status in linux package in Ubuntu:
  Expired
Status in linux-source-2.6.17 package in Ubuntu:
  Invalid

Bug description:
  On SMP-enabled kernels, the APM-based power-off is disabled
  automatically. Starting with 6.10 (Edgy Eft), Ubuntu began to
  ship SMP-enabled kernels as default. This has an impact on
  people who use old computers which do not support ACPI
  and hence rely on APM to power off automatically after halting.

  There is a way to work around this problem, and that is adding
  a file in /etc/modprobe.d/ which contains the following lines:

  === 8< ===
  options apm smp=1 power_off=1
  === >8 ===

  This line tells the APM module to use the power off feature
  even if the kernel is an SMP-enabled one.

  It would be nice if Ubuntu included an appropriate file in
  /etc/modprobe.d with the contents quoted above. This way
  users wouldn't have to do anything special to make Ubuntu
  power off properly on older computers which support
  only APM.

  Thanks in advance,

  M. Vefa Bicakci

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