You are using your mobile device for a presentation. You neither want the monitor to enter power saving mode nor to start the screensaver during the presentation.
For this situation, use the Presentation Mode which disables the DPMS and the screen saver.
Respective Tray Icon:
Tray Icon Name
Icon
Where to configure
Notebook BAT
Menu path: Setup > System > Power Options > Battery
Activating the Presentation Mode:
Right-click the battery symbol in the system tray.