I do have the same problem since Ubuntu 17.14, it doesn't matter if it is Ubuntu distribution or any of its flavours (e.g. Kubuntu which I am using currently). I do not remember if it worked fine on 16.04, all I can tell I was always doing distro upgrade and haven't installed fresh Ubuntu installation since 16.04.
Laptop is Dell Inspiron 7548. There are various blog or forum posts about this issue, mostly suggesting to edit grub (some about editing defaulTimeout in system.conf), unfortunatelly editing acpi settings or editing anything similar doesn't work. I do not use any custom ppa other than google/chrome. Means I am using stock/distro mesa drivers too. The laptop freezes on splash logo only during shutdown (reboot works fine). I have noticed that laptop freezes on poweroff command (visible on nosplash). The laptop sometimes doesn't freeze when battery is not fully charged, the less battery is charged the lesser chances that laptop will freeze. On 15-30% of battery laptop does shutdown fine, never noticed freeze. But when battery is 90% or fully charged, or charging, the freeze almost always happens. This laptop does have battery test in UEFI, test says battery is in fine condition. Anybody else noticed any connection with shutdown freezes and battery? One more thing worth noting, once following some another forum posts I have edited reboot command behaviour to shutdown laptop, laptop did shutdown always after invoking reboot, even when battery was fully charged and charging. But I have reverted this change because I need reboot more than shutdown. -- 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
