I had similar issues when i installed Ubuntu i tried to boot ubuntu but it got hang because of ACPI error i made acpi off so it can boot in but when i tried to shut down it got hand this time
Reason is simple Its related to your graphic card step 1: i went through these proceess ->booted into system with acpi off from grub command since i was not able to without doing so step 2: later when i got into ubuntu i did (this step neccessary or not i'm not sure, included it since i had followed it) i think its very necessary ->sudo apt-get update ->sudo apt-get upgrade step 3: Install graphic card Driver https://www.tecmint.com/things-you-mostly-need-to-do-after-installing- ubuntu-16-04/4/ after doing this once you might hang but on restart you wont need acpi off you can run ubntu without any hang during start splash screen or shutdown splash screen -- 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
