Mint 15 Freezes on Reboot

On some chipsets, Mint 15 completely freezes when attempting a reboot. This may be due in part to an ACPI interaction with the boot command. In order to overcome this problem, the grub configuration file /etc/default/grub must be updated as follows:

GRUB_CMDLINE_LINUX_DEFAULT="reboot=pci"

Modifying the parameter will force pci mode on reboot, and also turn off the annoying Linux Mint splash screen, showing important startup information.

In order for the changes made to the grub configuration file to be applied, the following command is necessary, followed by a reboot.

sudo update-grub2
sudo reboot