I seem to no longer be able to copy text, (eg; from a web page; "sudo apt-get remove appmenu-gtk3 appmenu-gtk appmenu-q") and paste it into a terminal window. Right click (and alt-rt click, ctrl-rt-click), only highlights sections of the terminal window of gives me the "minimize, ......" menu w/o a copy or paste option listed. It worked fine pre 11.0.. Clue? Thanks in advance...
There are a couple of methods of copy and pasting when using xterm.
To paste you can press
Or click the middle button on your mouse (if you only have two mouse buttons then pressing both at the same time will simulate a middle click)
To copy highlight the text you want to copy and press
Or highlight the text to copy and click the middle mouse button (or if you only have a two button mouse click both together)