This error was encountered with Linux and VNC
bad display name in add command
WARNING: The first attempt to start Xvnc failed, possibly because the font catalog is not properly configured. Attempting to determine an appropriate font path for this system and restart Xvnc using that font path … Could not start Xvnc.
yum install pixman libXfont xorg-x11-xfs xorg-x11-xfs-utils xorg-x11-xinit xorg-x11-xdm