seeing nothing in the kvm console

I am trying to get linux mint 18.2 on our server (that runs RouterOS 6.37.1 on x86) going. But as the title says, after i start the kvm and enter its console i just see the white terminal and the only thing i can to is pressing ctrl + a then q to disconnect. Btw i when i want to shutdown the kvm its just “stopping..” forever and i have to disable it.

This may be usefull
https://imgur.com/gallery/DSDYl

hi there!
i have got same problem . have you solved the problem ?
would you tell me how you fixed it ?