drag and drop text not working in Linux

Asher Max Schweigart il y a 8 ans mis à jour par D. Scott Nettleton il y a 7 ans 1
As of the first non-beta release, text drag and drop was added.
It works for me in Windows, but in Linux it does not.
I am running Fedora 17 KDE spin, 64bit. 

Running ubuntu, and I have the same problem. I've checked to make sure it's enable in settings, but I still can't drag selected blocks of text.