This is definitely NOT a kernel problem.
I was using the kernel 4.4 of Ubuntu 16.04 in the same machine running Ubuntu 14.04 and this problem never happened.
My machine specs:
Dell Inspiron 5447 Core i5-4210U 8 GB RAM SSD 480 GB SanDisk Intel/Radeon R7 M265 Hybrid Graphics
In 16.04, these hangs during shutdown occurred in the following kernels:
4.4 (Default) 4.8 (HWE-Edge from repositories) 4.9 (Mainline)
This is not a systemd problem?
This is definitely NOT a kernel problem.
I was using the kernel 4.4 of Ubuntu 16.04 in the same machine running Ubuntu 14.04 and this problem never happened.
My machine specs:
Dell Inspiron 5447
Core i5-4210U
8 GB RAM
SSD 480 GB SanDisk
Intel/Radeon R7 M265 Hybrid Graphics
In 16.04, these hangs during shutdown occurred in the following kernels:
4.4 (Default)
4.8 (HWE-Edge from repositories)
4.9 (Mainline)
This is not a systemd problem?