I've recently upgraded my desktop PC from 18.04 LTS to 20.04 LTS.
After the update, I can't seem to lock my screen. I click the lock option by using the panel on top-right, but nothing happens.
What could be the cause of this, and how can I fix it ?
gsettings set org.gnome.desktop.lockdown disable-lock-screen 'false'
? – FedKad Oct 04 '20 at 12:47