Same problem for me. My workaround is to ssh into the box from another box (or use a virtual terminal as suggested above). Do "ps auxwf" and kill the tsclient PID parent that's just above the rdesktop child then the white box is destroyed and you can proceed with your RDP login.
Same problem for me. My workaround is to ssh into the box from another box (or use a virtual terminal as suggested above). Do "ps auxwf" and kill the tsclient PID parent that's just above the rdesktop child then the white box is destroyed and you can proceed with your RDP login.
Very annoying little issue.