I have a fresh virtual machine with Centos 7, there was no DE (it's a machine in cloud system). So, I connect via ssh and installed group "GNOME Desktop", and then installed xrdp as here http://www.itzgeek.com/how-tos/linux/centos-how-tos/install-xrdp-on-centos-7-rhel-7.html#axzz3bR4gAmRT
And when I connect with Remmina from my Debian it shows blank black screen.
next
version from github.com/FreeRDP/Remmina