Ubuntu – Ubuntu 16.04 hangs on shutdown/restart

16.04crashrebootshutdown

My Ubuntu 16.04 hangs on shutdown/restart requiring me to press and hold the power key to turn the machine off… I don't know how to report this as a bug and what commands to run to show the necessary hardware/sys log info? Any help would be hugely appreciated!

Best Answer

  • I too had this issue. It appears to be a bug in multiple distributions.

    My simple fix was to edit /etc/default/grub line:

    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
    

    to

    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force"
    

    Run update-grub.

    Works every time now. I use a Lenovo G50 laptop. I'm pretty sure I changed this line in Grub with previous (other) linux distros on this laptop too.

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