I bought a Dell XPS 15 one month ago in order to install Linux on it in dual boot. I installed dual boot Ubuntu 16.04.3 LTS with Windows 10. But The problem is Ubuntu hangs on shutdown/restart. I faced the same problem with Linux Mint, Linux Lite, Lubuntu and Ubuntu-Gnome.
I tried these commands but nothing changed:
sudo gedit /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force"
sudo apt-get update # Fetches the list of available updates sudo apt-get upgrade # Strictly upgrades the current packages sudo apt-get dist-upgrade # Installs updates (new ones)