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Sorry for another question about ubuntu hanging on shutdown and reboot. I have looked at other questions on the site and tried editing the grub file etc as per most answers but to no avail. I have not tried reinstalling ubuntu-desktop or unity as per some answers as I'm unsure what the effect will be.

I have been running ubuntu 14.04 on my laptop, a clevo, for over a year now with no issues. Ubuntu is the only operating system on the computer. Last night it started to hang on shutdown and reboot. Have tried shutting down through os and terminal and neither work. Last thing I was doing before this problem occurred was trying to add a Canon LBP printer as per this ubuntu guide. Dont't know if that could be related or not.

Ideally I would like to know how to find out what is preventing the shutdown and how to fix it.

Below is a screen shot of what happens when I try to shut down. I am able to shut down at this point by pressing the power button on the laptop. If you need any more details let me know.

enter image description here

  • You should be able to use Ctl+SyReq and pressing R,E,I,S,U,B (case independent) one letter at a time, see it if continues to shutdown then – xtrchessreal Feb 8 '16 at 22:13
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I solved this problem, but am not 100% sure why what I did solved it. Because I though it may have been something I installed that may have caused the problem I decided to run the janitor tool in ubuntu tweak (screen-shot below). enter image description here After I ran this I was able to restart and shutdown ubuntu without any hanging on the splash screen. My suspicion is that something in the package configs was causing an issue but that's a guess. I didn't have to edit the grub like a lot of other solutions to this issue. I have not seen janitor been recommended to solve the hang problem on shutdown/restart but maybe it's something that other people can try if other solutions don't work.

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