I was having the same problem on Debian 9, but my PC was old. When I looked at linux-image and linux-header in synaptic, there were installations for old PCs and modern PCs, on my old PC was installed the version for modern Pcs. I installed the correct version and uninstalled the wrong one. Worked perfectly.
Ex: linux-image-4.9.0.4-686 - Linux 4.9 for older PCs linux-image-686 - Linux for older PCs (meta-package) linux-image-4.9.0.4-686-pae - Linux 4.9 for modern PCs linux-image-686-pae - Linux for modern PCs (meta-package) -- 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
