Stop Mac Screen From Dimming When Unpluggedįollow the steps below to Stop Mac from Dimming when it is unplugged from direct power source and it is running on battery power.ģ. Click on the Apple Icon from top menu bar of your Mac and then click on System Preferences in the drop-down menu.Ģ. On the System Preferences screen, click on Energy Saver option.ģ. On the next screen, click on the Battery tab and increase the inactivity time of your Mac by moving the slider beside Turn Display Off After to the right.Ĥ. Next, click on the Power Adapter tab and increase the inactivity time on your Mac by moving the slider beside Turn Display Off After to the right (See image below) Hence, an easy way to fix this issue is to increase the inactivity time on your Mac by following the steps below.ġ. In some cases, the display might be dimming every 30 seconds because the Mac is set to turn off its display after 1 minute of inactivity. This dimming of the screen serves as an indicator that the screen of your Mac is about to Turn-off in a moment. Stop Mac Screen From Dimming When InactiveĪs you must have noticed, the screen of your Mac starts automatically dimming when it is left inactive for a while, with trackpad not touched or nothing typed on the keyboard. Note: If you are looking to Stop Your Mac from Sleeping then you can refer to this article: How to Stop Mac From Automatically Sleeping.