How can have graphical view of linux server from ssh?

before I ask my question, i should say that I read all before question, but my problem, does not solve.

I have a linux server as host, with qemu/kvm and have some VM on it. I want to have graphical view from my windows 10. I install vnc manager from yast in my opensuse host, and vnc viewer in windows. but the connection does not establish

(Timed out waiting for a response from the computer)

when I enter virt-manager in ssh to see graphical view of virtual machine, I get this error:

(virt-manager:25309): Gtk-WARNING **: 10:25:07.483: cannot open display:

I also change these below in path : /etc/ssh/ssh_config

ForwardAgent yes
ForwardX11 yes
ForwardX11Trusted yes

what do I do to see graphical view of my host? or just ghraphical view of virt-manager? i open port 5901 in opensuse host and my windows.