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? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1594023 Title: Poweroff or reboot hangs. Laptop won't shutdown. 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1594023/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
