My monitor is set to blank after 10 minutes (600 secs).
This can be verified by:
~ $ xset q | grep Standby Standby: 600 Suspend: 600 Off: 600
This is fine for normal use but is definitely annoying when watching a movie.
To temporarily toggle screen blanking I use the following script I named noblank:
#!/usr/bin/env bash if (xset q|grep --quiet "DPMS is Enabled"); then xset s off -dpms notify-send -i info -t 5000 'DPMS' 'Monitor blanking is DISABLED' else xset s on +dpms notify-send -i info -t 5000 'DPMS' 'Monitor blanking is ENABLED' fi
This is bound to Win + Alt + B
Blanking will be restored after a logout/reboot
More info on DPMS here: