Hello Everybody!

This is my first post, hopefully is on the right place.

I'm trying to run Xdmx on Fedora20 with Cinnamon (I need Cinnamon, won't use GNome or KDE) but when I run the Xdmx command in my 2nd monitor/laptop, I only get a black screen where the mouse can go freely from one monitor to the other. Even that I might be close, this is of no use yet since I can't see my programs running.

Here is what I'm doing, can anybody please let me know what am I doing wrong?

Computer one is called 4S or 10.10.10.1 (the one to be extended)
Computer two is called JN or 10.10.10.2 (my "second" monitor).
Both computers are exactly the same: Lenovo W540, same video card, CPU, memory and very same OS configuration.

1.- Turn on both computers and login. (this step is truly important!)

2.- From my 2nd computer JN, I SSH into the first one 4S this way (I have this user setup in both computers)...

[theSameUser@JN ~]$ ssh -2 -4 -X -c blowfish-cbc theSameUser@4S

3.- I make sure DISPLAY is correctly setup once I'm on the SSH session...

[theSameUser@4S ~]$ export DISPLAY="locahost:10.0"

4.- I start from this SSH session Xdmx this way:

[theSameUser@4S ~]$ startx $(which cinnamon) -- /usr/bin/Xdmx :1 +xinerama -display localhost:10:0 -norender -noglxproxy

5.- I only get both screens in black and I freely move the mouse from computer 1 across computer 2 but I cannot see anything else.

6.- What am I doing wrong? I already tried deactivating firewalld port 6000 with no better results.

As an observation, I can run firefox or any other program via X/SSH from one computer into the other with no issues what so ever. Is just Xdmx that is giving me a hard time.

Thank you and have a nice day.