Shutdown/Reboot hangs Indefinitely - Ubuntu 16.04
I got exactly the same problem on Ubuntu 16.04 LTS.
After installing amdgpu-pro drivers ver. 492261 system hangs at reboot. Last message printed is: Restarting System
I solved the issue by adding reboot=pci
to the list of parameters passed to the kernel:
- Edit
/etc/default/grub
- Add
reboot=pci
to the end ofGRUB_CMDLINE_LINUX_DEFAULT
variable - run as root:
update-grub
reboot
(system will hang, turn off/on manually)reboot
(this time it will work)
I tried all the suggestions in the other answers and they didn't solve the issue for me.