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User profile for user: elpedro1978
elpedro1978 Author
User level: Level 1
21 points

Mac Mini 2020 Display settings resetting on LG TV

I have a Mac Mini (2020) connected up to an LG TV via HDMI. I've configured the Display settings to have the Mac screen fit perfectly on the TV screen. However, whenever I reboot the Mac the Display settings seem to be reset, until I go into the Display Settings window and click on the Underscan slider. It then corrects itself. This is quite annoying to have to do this every time I reboot (it works fine if just using Sleep). I've tried ensuring the aspect ratio on the TV is set as 16:9 rather than 'Automatic', as found on another forum this was a suggested solution (it didn't work).


Has anyone experienced something similar?

Mac mini, macOS 10.15

Posted on May 11, 2020 5:25 AM

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User profile for user: den.thed
den.thed
User level: Level 10
83,218 points

Posted on May 11, 2020 7:31 AM

Reset the PRAM, as per > Reset NVRAM or PRAM on your Mac - Apple Support


If that doesn't help, you may want to move it to one of the Mac Mini's Thunderbolt 3 (USB-C) ports.

USB-C Digital AV Multiport Adapter - Apple

Belkin USB-C to HDMI Adapter - Apple


for reference, see > Connect multiple displays to your Mac mini (2018) - Apple Support

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User profile for user: den.thed
den.thed
User level: Level 10
83,218 points

May 11, 2020 7:31 AM in response to elpedro1978

Reset the PRAM, as per > Reset NVRAM or PRAM on your Mac - Apple Support


If that doesn't help, you may want to move it to one of the Mac Mini's Thunderbolt 3 (USB-C) ports.

USB-C Digital AV Multiport Adapter - Apple

Belkin USB-C to HDMI Adapter - Apple


for reference, see > Connect multiple displays to your Mac mini (2018) - Apple Support

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Mac Mini 2020 Display settings resetting on LG TV

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