When shutting down screen goes black but power light does not go off. I even left it overnight and the power light remained on.

2

1 Answer

If the HP desktop that you are using is similar to the All-in-One machines that I've supported in the past, then you may need to make a slight modification to your Grub file to disable ACPI warnings, which can keep a computer active.

Here's how you can do it:

0. Open a Terminal (if it's not already open)
1. Edit your /etc/default/grub file with sudo:

   sudo {editor of choice} /etc/default/grub

   ^{Note: Be sure to replace {editor of choice} with your editor of choice.}
2. Find the line that starts GRUB_CMDLINE_LINUX_DEFAULT and add acpi=off to the end of the line, but inside the quotes. For example:

   GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off"

3. Save the file and exit
4. Update Grub:

   sudo update-grub 

   ^{Note: This step is important. If you skip it, then the change will not be applied no matter how many times you reboot.}
5. Restart your computer

Hopefully this allows your rest-deprived HP to shut down properly 👍🏻

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