One specific adapter leads to overscan

Question

One specific adapter leads to overscan

I have two identical LG Smart TVs as well as two USB‑C Digital AV Multiport Adapters connected to my MacBook Pro via HDMI. Both using the same HDMI-ports on the TVs.

One of the adapters leads to overscan (When I switch the adapters and leave everything else the same the overscan switches too). Also, they result in slightly different colors.

I tried resetting both TVs to factory settings and clearing PRAM. System preferences seem identical.

How do I fix this?

MacBook Pro 15″, macOS 11.1

Posted on Jan 9, 2021 5:18 AM

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Answer 1

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leroydouglas

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Jan 9, 2021 6:06 AM in response to ComputerSaysN0

ComputerSaysN0 wrote:

I have two identical LG Smart TVs as well as two USB‑C Digital AV Multiport Adapters connected to my MacBook Pro via HDMI. Both using the same HDMI-ports on the TVs.

One of the adapters leads to overscan (When I switch the adapters and leave everything else the same the overscan switches too). Also, they result in slightly different colors.

I tried resetting both TVs to factory settings and clearing PRAM. System preferences seem identical.

How do I fix this?

About overscan and underscan on your Mac, Apple TV, or other display

https://support.apple.com/en-us/HT202763

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Answer 2

Jan 15, 2021 2:47 AM in response to leroydouglas

I am aware of this. This was not the question which was "why do I get different results on identical hardware".

My guess is that I am unable to have my Macbook completely forget information about past devices.

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One specific adapter leads to overscan

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