About a day ago, my (32-bit)* Xubuntu 18.04 laptop has stopped blanking its screen although the xfce-power-manager settings are such that it should.
I have changed the blanking wait time and this didn't make any difference. I have ensured all packages are updated to their latest version through
sudo apt update && sudo apt upgrade. I have deleted the cache as in this thread: https://ubuntuforums.org/showthread.php?t=2036759 and deleted any saved sessions, and rebooted at every stage but the screen still does not blank.
Is there anything else I can try to resolve this issue?