On Sat, 12 Aug 2017 22:03:20 -0400
dep <dep@...> wrote:

> said Nick Koretsky:
> 
> | You need klipper running and set to sync selection and clipboard.
> 
> Well, that puzzles me, because I'm fairly certain I didn't have it
> running on my previous install and was running 14.04 atop ubuntu 12.04,
> and it worked as it always has. In fact, I've made a point of not running
> Klipper at all, because I've always found Klipper to be an answer in
> search of a solution. For as long as I've run Linux, which is 20 years,
> so it predates KDE 1.0 and Klipper (which wasn't in KDE 1.x at all),
> selected text is copied by a center (or both-button) click.
> 
> Until this install on my machine now. So I'm puzzled and a little alarmed 
> to learn that Klipper must be running for the ordinary X-windows 
> copy/paste function, which has worked since Looking Glass desktop on 
> Caldera 1.2 (and other desktops of the time as well). I'm thinking
> there's something going on here, unless there's supposed to be a little
> stub of Klipper running invisibly all the time, in which case this is the
> first I've heard of it.


There are two different clipboards on linux, and applications may behave
differently regarding them. The are dozens of apps that sync content of the
two like klipper, so maybe you previous install was running some other.

https://wiki.archlinux.org/index.php/clipboard

BTW, according to this it is possible to disable middle click it GTK, so
check that you are not using some GTK theme that did this.



-- 
  Nick Koretsky (nick.koretsky@...)