So basically I have a monitor and a TV and I want to have mirrored displays to both. I have had no issue doing this with Ubuntu 24.04 and previous versions however I have just installed 26.04 onto a new SSD. I find that when I boot up 26.04 I have TV monitor on by default and I have to turn the TV on, log into the desktop environment and then both monitors can be used. However, I would like for the dual display option to be a thing prior to log in so I don't have to turn the TV on. In practice, you can just press the Enter key and type in the password, however I don't want to risk anything going wrong and typing in things without knowing what is happening.

This was not a problem on 24.04. Some years ago I learned that display settings can differ prior to the login and I think I changed a file with display options so that the login screen you get was dual for both screens. If this is the case still can anyone remind me on how to get the file in question?

I have (580.173.02-0ubuntu0.26.04.1) Nvidia drivers installed on 26.04.