Ubuntu 16.04 freezes on shutdown

Question

I deleted "quiet splash" from GRUB_CMDLINE_LINUX_DEFAULT in the GRUB config file.

And when I reboot with the command line, I can see the commands until it reaches target reached restarting now

And then.... nothing, it freezes there. So it is not possible to shut down.

It is a dual boot of Win10 with Ubuntu 16.04

I had a similar problem on launch but I fixed it on adding acpi=off after pushing the E key in the GRUB menu.

EDIT

I changed acpi=off to acpi=noirq and this gave me a freeze on restart and when I did force shutdown and restart it gave me a purple screen with nothing. I had to edit again from the GRUB menu to put it back to acpi=off

What else can I try?

score 4 · Accepted Answer · edited Jun 12 '17 at 14:34

4

This started happening on my Ubuntu machine after I extended the Ubuntu partition size.

The solution is to boot from a Ubuntu live-session (boot your computer on a Ubuntu live-CD or live-USB then choose "Try Ubuntu", it may work on an installed Ubuntu too).

Then:

Make sure you are connected to the Internet

Open a new Terminal, and type the following commands (press Enter after each line):

sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt-get update
sudo apt-get install -y boot-repair && boot-repair

This should repair your GRUB and help the OS shutdown correctly.

edited Jun 12 '17 at 14:34

prolificslacker

1,275

answered Jun 12 '17 at 12:29

Robin Singh

56

Thanks. My machine keeps hanging on shutdown after I try to enable hibernate. This fixes it. – CaTx Oct 19 '17 at 01:22
I will validate your answer as it seems to have helped some users. I will give it a try. Thank you for your time. – chicken burger Oct 20 '17 at 12:20

score 0 · Answer 2 · edited Apr 13 '17 at 12:23

0

try acpi=noirq

like the answer to this question: acpi power off

edited Apr 13 '17 at 12:23

Community

1

answered Feb 07 '17 at 13:41

Leder

283

Thank you for your answer, it says I need to add it to boot kernel parameter. But where I can find this? and where should I add it? – chicken burger Feb 07 '17 at 13:46
I had a similar problem on launch but I fixed it on adding "acpi=off" after pushing the E key and added the line. <

do the similar thing and replace the entry acpi=off.
– Leder Feb 07 '17 at 13:49
1

it doesn't work; my splashscreen is like empty, purple colored like the ubuntu splashcreen and nothing happens. I had to restart and to replace again with acpi=off. Im running kernel 4.4 – chicken burger Feb 07 '17 at 14:52
acpi=off can be dangerous to the hardware, because of turning off the fan. noacpi could be one more try. Both are described here in german acpi kernel settings – Leder Feb 07 '17 at 14:58
1

I added an image to the ticked, to see if I placed things in the right places – chicken burger Feb 07 '17 at 15:01
It says in the screenshot: run update-grub... did you do that, too? I cannot further assist you here, sorry for that! I have not hold of a ubuntu box right now... – Leder Feb 07 '17 at 15:13

score 0 · Answer 3 · answered Jun 12 '17 at 14:53

0

Are you using Btrfs?

I had very long shutdowns of tens of minutes after moving my 8 data disks from ext4 to Btrfs. I worked-around it by adding nocache_space to the mount options for my Btrfs mount points in /etc/fstab.

answered Jun 12 '17 at 14:53

user19649

1

score 0 · Answer 4 · edited Jul 04 '17 at 05:21

0

I too had been experiencing random freezes after switching from 14LTS to 16LTS. I ran memtest86 and disk check but all passed. Just a couple of days ago out of exasperation I decided to revert from kernel 4.9 to kernel 4.4. Since then I've not had any hanging or freezing. In fact, it also seems to me my laptop runs cooler. Don't know why or any details but so far it is working for me.

edited Jul 04 '17 at 05:21

Eliah Kagan

117,780

answered Jul 03 '17 at 23:12

user707269

1

Ubuntu 16.04 freezes on shutdown

4 Answers4