Ubuntu 14.04 won't shut down

[orange2k]

When I choose to shut down the computer, it won't shut down - it just hangs there and I have to do push the power off button on my computer to shut it down...

Yesterday I upgraded from 13.10 to 14.04 - I didn't have this problem with 13.10...

[marco-prolog]

I have the same problem, I'm on an old Fujitsu Siemens Amillo pro and upon upgrading to 14.04 when I try to shut down everything seems to work as it should apart that The computer remains idle without turning off once all the processes are closed.
It was fine on 13.10

[Kevin Starkey]

I had the exact same issue, but I found a fix that worked for me.

sudo apt-get update
sudo apt-get install --reinstall ubuntu-desktop
sudo apt-get install unity

At first I thought it still wasn't shutting down, it normally takes 5 seconds, but for some reason it's taking like 30-60 seconds ...

[marco-prolog]

I had the exact same issue, but I found a fix that worked for me.

sudo apt-get update
sudo apt-get install --reinstall ubuntu-desktop
sudo apt-get install unity

At first I thought it still wasn't shutting down, it normally takes 5 seconds, but for some reason it's taking like 30-60 seconds ...

I tried that, sadly didn't work...

But I managed to find out something else:
I changed the line in /etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

to

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off"

and then ran

sudo grub-update

you won't see the results right away because even after updating the grub configuration this is reloaded only on a new restart so the first time you shut down it will behave exactly as before.

This fixed the reboot and made the system reach the point where it prints "System halted" (or something similar) as the last line in the shutdown sequence.
This still means that you have to press the power button to completely turn off the pc but the system is definitely halted.
The reason this happens is because acpi is the power management and by turning it off the system can't turn the pc off.

This is not at all a final solution or even a fix, but I think it shows us where the problem lies, sadly I'm not sure how we could procede from here, I'm going to try booting on a live cd/usb and see if I can turn of from there (maybe something went wrong with the upgrade)

UPDATE:
I tried from live cd and the problem is still the same, sadly I really need my laptop to be in working order (I also noticed that the Suspend behaviour is not working, probably still related to the same bug) so I'm reverting to 13.10 for the time being, hope a fix will come out soon ^^

[Danger_Monkey]

If you go to the command line and type the following, what do you get?

shutdown -h now

[marco-prolog]

I went back to 13.10 now so I can't do any more testing, but I tried that and the behavior was exactly the same as shutting down through the GUI

[mmorris]

Just installed ubuntu 14.04 server and

sudo shutdown now

cased the system to shutdown, but not power down.

While

sudo shutdown -h now

cased the system to shutdown and power down.


from man shutdown:

"-h Requests that the system be either halted or powered off after it has been brought down, with the choice as to which left to the system."

[Steve J]

I have the same problem w/14.04. I have an HP Pavilion DV9009us and the last two lines I see after I click on "shut down" are

*Deactivating swap
mount: / is busy
*Will now halt

After that, I have to manually turn the laptop off.

Any help appreciated.

This worked:

sudo shutdown -h now

[WoodenWalker]

"sudo halt now" should work

[Steve J]

Now, after I walk away for a few minutes, the screeb goes dark & I can't get it back w/o rebooting

This worked:

Also,, when I next used the system menu to "shut down," that also worked.