How Do I Keep Ubuntu from Going to Sleep?

Go to System Settings in the top right corner of your screen, select Brightness and Lock and set “turn screen off when inactive” to never.

How do I make Ubuntu not go to sleep?

Set up automatic suspend

1. Open the Activities overview and start typing Power.
2. Click Power to open the panel.
3. In the Suspend & Power Button section, click Automatic suspend.
4. Choose On Battery Power or Plugged In, set the switch to on, and select a Delay. Both options can be configured.

How do I keep Ubuntu screen on?

Go to Brightness & Lock panel from the Unity Launcher. And set ‘Turn screen off when inactive’ from ‘5 minutes’ (Default) to your preferred setting, be it 1 minute, 1 hour or never!