I am fairly new to Linux/Ubuntu, and I installed Xubuntu 15.10 on my Windows 10 64-bit PC last week so I can dual-boot. To shut down my computer in Xubuntu, I have to click on "Shut Down" twice before the computer actually powers off. The first time I click it, nothing appears to happen. The second time I click it, Xubuntu shuts down correctly. Is there a way to fix this so I only have to click once?
My specs:
Lenovo Z50-70
If you're using Light Locker, go to the Control Panel and disable it.
Afterwards, please run this shell command in order to force a system reboot:
sudo telinit 6
Note: The command above needs to be run even if you're not using Light Locker.
After restarting your computer, does the problem happen again? Test your system a few times. If the problem persists, open /etc/default/grub for editing by running the following command:
sudo gedit /etc/default/grub
Note: If you don't have Gedit, install it by running this command:
sudo apt-get install gedit
The contents of your /etc/default/grub file will look similar to what we see below, except that you'll have to turn GRUB_CMDLINE_LINUX= into GRUB_CMDLINE_LINUX="acpi=force":
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT="10"
GRUB_DISTRIBUTOR=lsb_release -i -s 2> /dev/null || echo Debian
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX="acpi=force"
Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
Now run this command in order to update GRUB and force a system restart:
sudo update-grub && sudo telinit 6
If the problem still persists, click "Shut Down" only once, then run the following commands and paste their output here:
dmesg
uname -a
