For questions regarding shutting down and powering off.

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1answer
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How to detect if it was an unexpected power down

I'm trying to find/figure out if a computer using Ubuntu 16 had an unexpected power down. I checked many sources on Internet, review the logs in the /var/log files, but I could not find any clear ...
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0answers
14 views

Shutting down after some time even in GRUB recovery

Hello I would like to know why does my computer shutdown after some time. Overheated ? The fan works fine plus cleaned the inside of the laptop. Drivers malfunction ? Don't know how to verify. Works ...
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0answers
11 views

webmin: How to check mysql log?

My website is hosting with linode Ubuntu 14.04. I just found out my database server was shutdown and I had to manually start it. How can I check the mysql log so that I can get some hints about why my ...
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0answers
134 views

How to fix shutdown/reboot problem on Ubuntu 16.04 server edition?

has anyone experienced shutdown/reboot issues? I tried shutting down/rebooting but I get the message like "Cannot reached shutdown.target/reboot.target" I looked at /var/log/syslog and nothing shows ...
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1answer
109 views

systemd stuck at “Powering off.” on 16.04 - Dell Latitude

With a fresh install of Ubuntu 16.04 on an old computer* that's been running 14.04 fine, Ubuntu won't fully shut down. I've tried the fix everyone suggests, namely, changing a line in /etc/default/...
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0answers
63 views

Ubuntu 16.04 does not shutdown properly from GUI

If I try to shutdown Ubuntu from GUI (gear icon in top right > Shutdown > Shutdown) nothing happens. The running applications stay open, the Desktop does not disappear, nothing. I can continue ...
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1answer
27 views

How can I set minutes to make a hibernation in Ubuntu through the Ubuntu Terminal?

I know how to hibernate just at the time using: sudo pm-hibernate What I need is hibernate in the next 60 minutes. For example, when you wanna shut down in 60 minutes you type: sudo ...
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2answers
56 views

Ubuntu shutdown bricked my external hard drive

How does Ubuntu end processes when it shuts down? Is it possible that shutting down and then unplugging my external hard drive could have broken a path? I have Ubuntu 16.04 and a WD Elements 10A8 1TB ...
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0answers
89 views

Not shutting down: CPU soft lockup (plymouthd) / self-detected stall on CPU

When I click Shut down in the system menu, it does not turn off but repeatedly shows the errors below. MMI watchdog: BUG: soft lockup - CPU#2 stuck for 23s! [plymouthd:4693] INFO: rcu_sched self-...
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0answers
43 views

Few options in nvidia-settings and stuck on CPUX for Xs on shutdown

after 3 days I've finally installed Ubuntu 16.04 on a Dell notebook with a skylake CPU. Now, I've two main problems: 1) Ubuntu doesn't shutdown, when I press the shutdown button Ubuntu say's: "CPUX ...
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0answers
8 views

Interactive prompt displayed but ignored on ACPI shutdown event (16.04) [duplicate]

This is a very weird issue, and I've consulted the usual resources but found nothing. When I press the shutdown button, I expect to see an interactive prompt -- e.g., "Shutdown / Reboot / Suspend / ...
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0answers
41 views

Lubuntu 16.04 shutdown get's awkward!

I recently intalled lubuntu 16.04 in my desktop computer, everything seems to work fine but a problem with shutdown: When i want to shutdown the screen goes into black (with a rare blueish glow) and ...
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0answers
33 views

Ubuntu shuts down on suspend?

I have ASUS GL552VW laptop with nvidia graphics card and driver nvidia-361 on uefi. Now the problem I am facing is , whenever the computer suspends(Either by clicking manually , or from a long idle ) ...
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2answers
170 views

My ubuntu 16.04 does not shutdown

I recently installed ubuntu 16.04 alongside windows 7 in my pc and all the features in it are working fine but when i click on shutdown it gets stuck on the violet screen with ubuntu written on it and ...
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2answers
183 views

How to make /sbin/shutdown, /sbin/reboot etc. require sudo again in 16.04?

For whatever reason, we do no longer need to be root (or using sudo) to run /sbin/shutdown, /sbin/reboot etc. This seems to be because those executables are now symlinks to /bin/systemctl which ...
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0answers
23 views

How do I configure Ubuntu 14.04 LTS such that at the login screen, a brief power button press initiates a clean shutdown?

I have a system that runs an up-to-date Ubuntu 14.04 LTS, with Xfce as the window manager and the default login/session manager. (LightDM with the Unity greeter? It certainly looks very similar to ...
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2answers
169 views

16.04 unable to shutdown

An Ubuntu 16.04 LTS instance failed to shutdown. The shutdown was initiated from the Unity interface. The graphical interface became unresponsive. CTRL+ALT+F1 provided a login prompt. I was able to ...
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1answer
46 views

Ubuntu Touch - Shutdown sometimes rebooting phone

Since the last Ubuntu update on the 02.06, I have noticed that on a few occasions, that when I shutdown my phone it will reboot itself straight away. I shut the phone down by clicking on the ...
16
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1answer
297 views

Ubuntu is not sending SIGTERM on shutdown

I am beginning to suspect that Ubuntu is not telling the running applications that it is shutting down to let them quit correctly but instead forces them to quit. If I leave chrome open when shutting ...
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0answers
88 views

Why does at-spi-registryd.desktop warning appear every time I shutdown?

I have no idea what this is, can anyone help?
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0answers
39 views

Shutdown Freezes on Ubuntu 14.04 (2015 Macbook Pro Dual-Boot)

I recently did a dual-boot on my 2015 Macbook Pro Retina. I opted not to use rEFInd, instead selecting sda1 (/boot/efi) as the mountpoint for my boot partition. I cannot shut down my computer without ...
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0answers
71 views

Ubuntu 16.04 Battery Drains to 50% in shutdown in 5-6 hours [HP pavilion Gaming Notebook]

I have a dual boot system with windows 10. I use ubuntu most of the time and in the night when i shut it down with 90%-95% battery. Next morning when i open up the laptop, the battery is drained to ...
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0answers
157 views

Ubuntu 16.04 Black Screen After Suspend

I've seen this issue reported but have not seen a solution working for me. I did a fresh install of 16.04 and everything is working great. The only problem I'm having is when I close the lid on my ...
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0answers
41 views

Stall on CPU on reboot / shutdown

I just installed a fresh version of 16.04 on my MSI GE62 laptop. I had some trouble installing at first, which was solved with a combination of: Secure boot off Fat boot off and setting nouveau....
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0answers
64 views

Shutdown brings back to login screen

I just installed Ubuntu 16.04 on my laptop. Installation went well and i could shutdown my laptop properly. One click on right top corner would shut my system down without problem. And then i started ...
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0answers
56 views

GNOME 16.04 Reboot after Shutdown

My PC always reboots 5 seconds after its turned off. I looked at Reboot after shutdown (Ubuntu 14.04 (also 12.04); Dell latitude E7440), but: the top rated answer didn't help since I have no power ...
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0answers
31 views

How do I avoid having to unplug my laptop each time I turn it off?

xubuntu 16.04 64 bits on an AHTEC clevo m7xsun bought in 2009 (defunct company): the regular way of turning my computer down means, always, having to unplug the cable: I click on turn off and ...
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0answers
73 views

Reached Target shutdown

1 out of 8 times Ubuntu freezes at shutdown. When I click on Esc I see the log and it gets stuck at 'Reached target shutdown' but it never shuts down. I read somewhere about it's a bug and tried to ...
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0answers
51 views

MySQL doesn't shutdown cleanly sometimes

I have a fresh install of Ubuntu 16.04 LTS Server x64 in a VirtualBox VM with its provided MySQL, without any additional databases currently. Sometimes the shutdown of MySQL itself fails with the logs ...
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4answers
178 views

Ubuntu overheat and instant shutdown

Since the last couple of days my desktop PC shuts down instantly and automatically even on light system usage. I found this line in the system log just before the shut down. localhost kernel: [14404....
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1answer
89 views

Better to suspend my ubuntu or shut down it during long journey in car? [closed]

I will be in a 4hr car drive, but I still have a lot of unfinished editing jobs that I don't want to close in Ubuntu, because I will have to take notes of what is left for each job so that I can ...
2
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1answer
65 views

How do I get my script to run BEFORE any shutdown sequence like unmounting my external drive

I have a back up script in ~/scripts/backup.sh and my upstart conf in ~/.config/upstart/shutdown.conf. description "my shutdown script" start on desktop-end task console log script exec ~/scripts/...
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0answers
26 views

Ubuntu 14.04 Clear Swap when RAM is full

I am running a python program that, for some reason, goes crazy once in a while. I am then forced to kill the program but the RAM and Swap used by the program is not released. This causes the hanging ...
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2answers
68 views

Super confused between upstart and systemd

Given I'm running 15.10 my system should be using systemd confirmed by... $ ps -p1 | grep systemd && echo systemd || echo upstart 1 ? 00:00:02 systemd systemd But I have an ...
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0answers
107 views

mysql-community-server makes ubuntu shutdown very slow

Hi there: My question is about shutting down ubuntu xenial 16.04 LTS in a Dell machine dual-boot with Windows 10. Dual boot is working really well. The issue happens during ubuntu shutdown. The ...
3
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0answers
1k views

Ubuntu 16.04 won't shutdown

On my MSI GS60, when I try to power off Ubuntu 16.04 LTS the laptop will not shut down. Reboot works fine though. I have removed the quiet splash parameters for grub so I can see the output. When I ...
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0answers
402 views

Cannot reboot/shutdown Ubuntu 16.04

I hadn't any problem with 14.04, but 16.04 is so buggy. I can't reboot Ubuntu after installation is completed from live USB/DVD and I must press the power button. Also sudo reboot and sudo poweroff ...
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1answer
240 views

Cannot reboot or poweroff Ubuntu 16.04

Ubuntu 16.04 kernel 4.5.4-040504-generic Whenever I try to reboot or power off I receive: Failed to power off system via logind: Transaction is destructive. This began at the same time that I ...
0
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1answer
43 views

Shutdown: CLI vs GUI [duplicate]

Is there a difference between doing a shutdown via Ubuntu's GUI versus doing a "sudo shutdown now" from the terminal? I ask this as I notice that my machines take longer to shutdown if I shutdown via ...
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0answers
92 views

Dualboot ubuntu/ windows: Shut down will not turn off computer, OS still running

This shows that fastboot in Windows is disabled. This shows that auto save in Ubuntu is disabled. I have encountered a problem a few times. I am currently running both ubuntu 14.04 and windows 10. ...
0
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1answer
177 views

Plymouth Error - booting and shutdown error

I have messed up my plymouth settings in Ubuntu 16.04 when trying to install new themes. And now my system won't shutdown and freezes. At boot systemd generates kots of error messages. But the system ...
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0answers
68 views

Ubuntu 16 doesn't power off completely my HP

Well, this is strange. When i shut down my computer. It freezes on power down!! Here is an example with some screenshots : At the end, i have to long press the power off button. I have no other ...
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0answers
19 views

How can I automate the cancelling of a “poweroff” command when executed?

Whatup askubuntu, long story short: Well, I am doing an experiment on VMs. My goal is that, I want to see if you could prevent the hypervisor from shutting down the VM, possibly running it forever ...
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0answers
20 views

Restore shutdown to root only

I've changed the shutdown command to be able to run it as normal user (not root): sudo chmod a+s /sbin/shutdown And now I cannot get back to root only when running shutdown: $ sudo chmod a-s /sbin/...
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0answers
17 views

Is it safe to kill power without shutdown, if a flash drive is mounted with the sync option?

I have a single board computer (Udoo Quad http://www.udoo.org/) with an Unbuntu 14.04 OS on a micro SD card. If I mount the disk with the sync option in fstab, is it safe to remove the power without a ...
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0answers
23 views

On 16.04 I lose the ability to write to or shutdown hard drive after un-suspending

This is happening on a flashed Toshiba Chromebook 2 (2015). If I leave my computer suspended long enough I lose the ability to write to my drive (can not create new documents, run scripts, open ...
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0answers
78 views

Ubuntu 16.04 shutsdown randomly?

Was playing radio with rhythymbox, and ubuntu 16.04 shutsdown. Any idea what is the problem?
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0answers
83 views

Ubuntu Gnome 16.04 power off does not working instead restarting

My laptop does not shutdown. When I click on power off button system restart instead of shutdown.
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0answers
56 views

16.04 LTS Reboots after shutdown (Acer aspire E5-511)

Upgraded to 16.04 as a way of fixing the networking bug introduced in recent 14.04LTS update. Now when I do a Shut down my laptop bursts back into life a few seconds after completely powering down. ...
6
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1answer
179 views

Why does `reboot` and `poweroff` work without super user privileges in Ubuntu 16.04?

There already are a lot of questions about why shutdown and reboot require root privileges. There are many good answers available too. Why do we need to be root in terminal for shutdown and restart? ...