kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Am843@xxxxxx, could you please execute the following via a terminal in order for the necessary debugging information to be attached:
apport-collect 1023913

** Package changed: pm-utils (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

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

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https://bugs.launchpad.net/bugs/1023913

Title:
  Problems with "hibernate"

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  OS: Ubuntu 12.04 x86_64, Hardware: Lenovo T410s (using Intel
  graphics), i5-540 M.

  When running pm-hibernate, and when according to "free" the RAM
  occupation is below the swap size, hibernation does not take place.
  When running subsequently "cpufreq-info", only one thread shows up
  (there should be 4). To put the CPU into its "normal" state requires a
  reboot.

  A partial fix: executing (as root):
  sync; echo 3 > /proc/sys/vm/drop_caches
  sync; echo 0 > /proc/sys/vm/drop_caches
  cat /proc/sys/vm/drop_caches
  frees memory. A subsequent hibernation (with "pm-hibernate") then works.

  Thank you,
  François P. Rotzinger

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