Rock64 very disappointed

[ctenot]

Dear all 

so happy to get yesterday my new Rock64 / 4G. 

Some issue, may some of you use to have the same issue ( Xenial and Debian distrib)

- VPN PPTP doesn t work 
      => copy/paste from my ubuntu rp3 which work
- RDP client (Remmina, freerdp, rdesktop) doesn t work
      => mouse disappear
      => screen refresh makes impossible to work on it
      => work fine on rpi3

thanks in advance