After upgrading my laptop (Dell Inspiron 5447) to Ubuntu 16.04 I saw that I can't shut down or restart after a few hours using the system. It hangs in Plymouth and stays that way until I force the shutdown by pressing the On/Off button.
As this is a common problem (there are tons of questions on the Internet) I tried to fix it, but none of my attempts were effective. Already tried:
- Boot with acpi=force, acpi=noirq and pci=noacpi;
- Disabling Swap;
- Run 'sync' before reboot or shutdown;
- Use another kernel version (4.7, 4.8, 4.9 and 4.10 from mainline);
- Disabling USB 3.0 in BIOS setting;
- Disabling TLP;
The most interesting thing is:
- I can shutdown/reboot normally using 14.04 and the kernel from Xenial HWE;
- The system is shutting down/rebooting normally if it doesn't have a considerable uptime (< 2 hours for example);
My Machine Specs:
Dell Inspiron 5447 – BIOS A10
Intel Core i5-4210 Processor
8 GB RAM
480 GB SSD Sandisk
Hybrid Graphics (i915/amdgpu – Radeon R7 M265)
Does anyone know how to solve this problem?
Best Answer
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:/etc/default/grub
reboot=pci
to the end ofGRUB_CMDLINE_LINUX_DEFAULT
variableupdate-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.