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Nyxynyx
Asked: 2020-10-04 16:53:19 +0800 CST

What Causes Ubuntu 20.04 Server Edition to Automatically Suspend?

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After installing Ubuntu 20.04 Server Edition on an i7-5930K machine, I notice that the system will automatically be suspended after a short period of no user interaction.

The automatic suspend had to be disabled by running the command

sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target

Why was the system automatically suspended? Shouldn't the suspend settings be disabled by default, especially since this is a server installation of Ubuntu? Is it because of a motherboard BIOS setting?

power-management server suspend acpi 20.04

1 Answers

  1. check what autosuspend.service is doing:

    $ sudo systemctl status autosuspend

    and disable if needed by:

    sudo systemctl stop autosuspend
sudo systemctl disable autosuspend
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