Hi. I tried many things to get the display from going blank (a trouble when I'm playing a game)--installing Caffeine, Power Manager settings in Startup Programs, BIOS settings. I was hoping someone could help because I'm out of ideas--
gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout '0' && gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-battery-timeout '0'
sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target