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I have been around the internet trying to find the answer and no solution given has worked.

I have disabled quiet and splash from /etc/default/grub so I can see the output. When shutting down, there are no errors, but the system halts on the line

[  OK  ] Reached target Shutdown.

Does this mean the system has finished all processes etc.? After this I have to power down by holding the power button. This was also a problem in 14.04. Is there anything I can do to get the computer to power down?

A.B.
  • 90,397
Gregory Sims
  • 133
  • Have you tried using sudo shutdown now – David Nov 16 '15 at 19:40
  • That may not necessarily be the cure, David. It might be the very same thing as I had here: a hardware issue. For instance, the culprit might be a dying resp. soon-to-die harddrive, which (due to its malfunction) is either "only" slowing down the whole system, or even blocking some internal processes. If this ever happened on my box, the first thing I would've done is check /var/log/kern.log and related logs. Come to think of it, dmesg | grep Emask might also come in handy. – syntaxerror Nov 16 '15 at 19:44
  • @DavidCole "sudo shutdown now" gives the same results. – Gregory Sims Nov 16 '15 at 22:36
  • Maybe related to: http://askubuntu.com/questions/680212/ubuntu-wont-shutdown-or-freezes-at-splash-screen/680223#680223 – xtrchessreal Mar 08 '16 at 16:37
  • I have this problem with 15.10 on an Intel NUC DE3815TYKH. A work-around appears to be disabling XHCI USB controllers in the BIOS... – lane Mar 30 '16 at 14:16

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