CentOS - Mar 2020 - CentOS 8 VM 800x600

Hi all,

I am trying again to get video higher that 800x600 on CentOS 8 VM guest.
I re-installed the image, I installed spice-vdagent, I tried setting QXL
and VGA both - so far
everything is always 800x600.

What is the trick ? I am using virt-manager.

Jerry