Reboot : Power Down Ubuntu 20.4.2 LTS Problem

boot shutdown reboot

I'm new Ubuntu user , I'm using 20.4.2 version and when I try to power off My Laptop it starts to shut down after that it shows only black screen within message up left says: Reboot : Power Down


I solved the problem by this:

sudo gedit /etc/default/grub

Then just add the following to the booting parameters: acpi=force like this:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force" After that, save the file and run the command:

sudo update-grub

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