I am using elementary OS, but sometimes my system won't shutdown: it freezes with the elementary logo without powering off. What to do?
Edit the file
sudo scratch-text-editor /etc/default/grub
And modify the line :
It to obtain this line :
GRUB_CMDLINE_LINUX_DEFAULT="acpi=noirq acpi=force apm=power_off quiet splash"
Then, save, close, and back in the terminal, execute :
Now, when you will Shutdown, it should work.