Same Problem Dell XPS 15z Kernel: 4.18.0-22-generic OS: 18.04.02 Window manager: KDE Not using Nvidia blob drivers.
Editing grub with "acpi=force reboot=pci" didn't help. Sometimes also partially freezes when using firefox (mouse dosen't move, ping command dosen't work, can't kill -9 firefox process) -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
