I don't think this is the TV. If it was this would only affect what is displayed on the TV itself and it would affect everything on the screen the same. But as you can see from the screenshot this only affects certain applications. I also have 2 regular 1080p monitors attached and it does not matter what screen i put the affected application on its the same. It may be a colour depth issue but unless that is application specific and having this screen attached throws off the colour depth of my other 2 screens i dont see how this could be related to the TV.
I don't think this is the TV. If it was this would only affect what is displayed on the TV itself and it would affect everything on the screen the same. But as you can see from the screenshot this only affects certain applications. I also have 2 regular 1080p monitors attached and it does not matter what screen i put the affected application on its the same. It may be a colour depth issue but unless that is application specific and having this screen attached throws off the colour depth of my other 2 screens i dont see how this could be related to the TV.
It does seems like ubuntu has some issues with 4K screens. Im not sure if these are related but i also experience this issue which has nothing todo with the screen being a TV https:/ /forum. manjaro. org/t/gnome- night-light- is-lime- green-at- 4k/48376