[solved] Turn Screen off when using HDMI out on Android

Issue: When connecting your android device to TV or projector using HDMI out, you can’t turn the Android device display off.

Finally, I found the best solution to turn my android tablet screen off when using HDMI out. (tested on Acer Iconia A500 tablet)

Solution: The solution is to use RootDim, you can download it for free from Google Play Store.

Requirement:  need to root your Android device.

How to do it?

1./ Download RootDim from Google Play Store


Download from your Android device click here

2./ When connecting to HDMI out port, run the Root Dim, then click “min” from “min, 25%, 50%, 75%, 100% ” options


Warning: Do it at your own risk.  To turn the tablet screen on again, just press power button.




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