Copy Paste in Text Editor not working in Ubuntu 18.04

I wonder if anyone has any ideas why copy/paste ctrl c / ctrl v , isn’t working for me in the text editor. I am using Ubuntu 18.04 in Blender 2.79b . I can copy from outside of Blender into Blender but can’t copy within Blender in the Text Editor? This is very frustrating. Since I can’t seem to find others having this issue I am sure it is something unique to me but can’t figure out what. Does anyone have any thoughts?
Thanks.