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I tried Ubuntu, Xubuntu and Kubuntu - all 18.04. With Xubuntu 16.04 I had it too. They hang on shutdown - load sign rotates without stopping or hangs too. I always have to shut it down by pressing power button.

Here is logs.

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Suspend doesn't work in 18.04 either for me and many others. Reboot works though. If reboot works for you too then from Grub menu it is safer to power off.

In the GRUB menu, press C and then enter halt

Hopefully 18.04 will be mostly fixed by the July 26, 2018 release of version 18.04.1.

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  • @RS I'm running regular Ubuntu and cannot duplicate your results. Lets wait a few days and see if the freeze comes back. If not that's great. May 15, 2018 at 2:52
  • with regular Ubuntu it happens too for me: hangs on 2nd dot.
    – R S
    May 16, 2018 at 0:55
  • it freezes on halt.
    – R S
    May 16, 2018 at 1:12
  • I am experiencing same issue. It was same with the 16.04 version, though I though is due the way I installed as I am using back Ubuntu Desktop after 8 years. Then if is a bug hopefully will got solved
    – Carmine
    Jul 26, 2018 at 14:58
  • @CarmineTambascia When 16.04 first came out I had some suspend/resume stumbling blocks but got them all worked out after a couple of weeks. The same might be true for 18.04 but I only boot into it for bug testing. Periodically I clone my 16.04 to the 18.04 partition and run the upgrade process on it to see what's changed. Jul 26, 2018 at 22:45
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I don't know if it's related to your issue and I haven't tested suspend yet, but I found a better workaround to shutdown. If I restart the laptop, I can power off from the GDM login screen so it goes like this:

Push power button to start laptop; Log in and do your thing; Restart; Power off from GDM;

No idea why it works. I absolutely have to restart once before I can power off. My issue is related to nVidia drivers and Prime. I didn't have this issue on 16.04 using the 384 driver.

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