I want to be able to highlight text without it selecting the numbers for the lines or spilling into another split I have open. The mouse=a option does that perfectly on Ubuntu, but when I switch over to a Fedora system it won't let me copy with the same keyboard shortcut that worked on the Ubuntu system in the same terminal emulator. It will highlight like it should but won't copy.
I tried mouse=r and v and also holding shift while highlighting. None of them worked, and I don't really consider shift a solution since I want consistent results across both systems. I think it has to do with Fedora's default vimrc in /etc, but I don't know enough to start deleting lines in there.