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After upgrading my system from Ubuntu 20.04.1 to 22.04.1, it stopped suspending.

  • When I close the lid of the laptop, it only locks the system, although it is explicitly configured to suspend.
  • When I run systemctl suspend, it only disconnects the internet (it gets immediately reconnected automatically) and the process finishes after some milliseconds (prompt to next command).
  • Only the command sudo pm-suspend is able to actually suspend the system, but it is not preferred in distros with which systemd is shipped – when I wake it up from pm-suspend, it bypasses the lock screen and does not reestablish the internet connection automatically. So, it is really not the ideal command to run for that.

I already tried rebooting the system, this solution and none of them work. How can I make my system suspend normally again?

System: Acer Aspire V3 772G without the battery (always plugged). MATE desktop is installed and nvidia-450 drivers are in use.

Luiz Ventura
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