My findings so far
spice-vdagent was installed, but not running.
In order to start it, I had to do the following steps:
# systemctl enable spice-vdagentd.service
Modify /etc/systemd/system/spice-vdagentd.target.wants/spice-vdagentd.service
...
# PIDFile=/var/run/spice-vdagentd/spice-vdagentd.pid
PIDFile=/run/spice-vdagentd/spice-vdagentd.pid
...
Modifiy /usr/lib/tmpfiles.d/spice-vdagentd.conf
...
d /run/spice-vdagentd 0755 root root -
Add 2 devices in Virt-Manager
- Channel spice
- Channel qemu-ga
It helps a lot to have spice-vdagentd running. But unfortunately the screen resolution problem is not yet solved.
spice-vdagent-0.12.0-9 is a tad outdated. As Openmandriva 4.0 is a fresh release, I would have expected version 0.19. It might be a security issue, too.
Greetings
Bequimão