Public bug reported:

After I've updated ubuntu to Utopic on my laptop (Asus K53SV)   I can't
shutdown, reboot or suspend.  System just hangs on "Will now halt" or
"Will now reboot".  Different combinations of kernel params
"acpi=force", "acpi=off" etc didn't help.

I've also tried to boot from liveUSB(14.10) with the same result.

After some investigation I found that shutdown, reboot etc actually
works with kernel 3.13 from previous ubuntu version, but not with kernel
3.16(default) or 3.18 so it is quite definitely a kernel bug.

** Affects: ubuntu
     Importance: Undecided
         Status: New

** Attachment added: "uname -a"
   https://bugs.launchpad.net/bugs/1415892/+attachment/4307909/+files/uname.txt

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https://bugs.launchpad.net/bugs/1415892

Title:
  ASUS K53SV won't reboot, shutdown or suspend on 14.10

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