Fedora 9, remote access using virt-manager (libvirtd) over ssh

These instructions made it simple enough, only gotcha could be to understand that on local system you might be using virt-manager as privileged or un-privileged so relevant user's ssh-pub keys are in concern, while logging on to the remote host's libvirtd.

Though basic remote connection works, I yet have a particular problem to solve:

Case: My Virtualization host system is mainly accessed via a VNC console, its display resolution is intentionally smaller than my small client system (D430 laptop).

Due to that while using native virt-manager from the Virtualization host's VNC I can't see whole screen of GuestOS running Xsession. But if I use the remote virt-manager session, its best only when I access that over same network, if I am connected via VPN things get too slow. Unless virt-manger/libvirt would support low colors (low as 8 colors).

Any one would know how to setup low color mode on vnc-sdl of libvirt ? and also desirable to know how to change that on-fly sort of.