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Whenever I try to shutdown my pc by using sudo shutdown -... now (it doesn't matter what I fill in for the ...), it always shutdowns down for about 3-4 seconds, and than just powers up again. I'm sure WOL is disabled, and just to be sure I tested it with ethernet cable unplugged.

It's a fresh install of ubuntu server 14.04. It's also a new pc so I do not have any prior experience with it.

Any help would be very much appreciated

user2520938
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    There might also be a BIOS/UEFI setting for "power on after power off" which decides what happens after shutdown. – muru Aug 23 '14 at 21:38
  • Had the same problem some time ago, can you try with another (older) kernel? – Jan Aug 23 '14 at 22:17
  • Some time ago I've found the same problem reported in a bug report for ubuntu-mate (as this is what I've used). And just recently the bug seems to be SOLVED after the last kernel upgrade!!! I am not very sure about though. Need additional testing. But today with all the rest in the setup unchanged the laptop (HP probook) started to poweroff normally. Current kernel is: $ uname -a Linux uhp 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux What about the other affected people? – FroL_Onn Feb 14 '17 at 17:03

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Just had this problem with 14.04 on a Gigabyte GA-MA78GM-S2H based desktop. Tried all the BIOS settings I've seen suggested around the web with no luck.

Thought it might be a USB related wake. Used non USB mouse and keyboard and problem solved.

Also USB keyboard adapter will work, but not one for the mouse, which is a little odd.

Foxy
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