Charles Twardy 's suggestion above was part of the solution for me:
1. In /etc/X11/gdm/gdm.conf
Find the [xdmcp] section in the file, set: Enable=True
2. In /etc/xinetd.d/Xvnc
Change: /usr/share/X11/fonts/misc
To: /usr/share/fonts/X11/misc
3. sudo killall Xvnc
4. sudo /etc/init.d/xinetd restart
and voila, the session comes up fine. I had all the reported errors in this bug: First, vnc4server threw "Transport endpoint is not connected" in syslog - step 1 took care of that. Then Xvnc did not start any longer in desktop environment mode, only the gray screen with the "X" mouse pointer appeared. Step 2 took care of that.
Charles Twardy 's suggestion above was part of the solution for me:
1. In /etc/X11/ gdm/gdm. conf
Find the [xdmcp] section in the file, set: Enable=True
2. In /etc/xinetd.d/Xvnc X11/fonts/ misc fonts/X11/ misc
Change: /usr/share/
To: /usr/share/
3. sudo killall Xvnc
4. sudo /etc/init.d/xinetd restart
and voila, the session comes up fine. I had all the reported errors in this bug: First, vnc4server threw "Transport endpoint is not connected" in syslog - step 1 took care of that. Then Xvnc did not start any longer in desktop environment mode, only the gray screen with the "X" mouse pointer appeared. Step 2 took care of that.