I've installed Ubuntu 14.04 on my lab and Issue is that, after the shutdown my desktop, automatically restart machine after x hour or minute then automatic restart or poweroff anytime.
Sometime also machines are not shutdown properly, its stuck !
Action taken :
1) On /etc/default/grub :
sudo gedit /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force apm=power_off" sudo gedit /etc/modules apm power_off=1
2) System packages are up to date.
Any one help me that why shutdown related issues on ubuntu 14.04.