Libvirt VM screen size - unable to select resolution with MS Windows

[WTig3ner]

I am new to libvirt/QEMU/KVM. For years I’ve been using VMware Workstation, but it does not play well with Kubuntu 24.04. I have gotten libvirt set up. I have discovered that it will run a VM from a vdmk file, and I have gotten my VM booted up under libvirt.

That’s the good news. The bad news is that the VM in libvirt does not nearly fill the monitor screen. It’s a Samsung monitor in portrait mode and supports a resolution of 1920x1080.

My question is how I get the VM to expand to fill the screen. I’m old, so I need big pictures (and small words of explanation).

Thanks to all.

[Lubos]

Hello,

I’m not a windows user but here is what I have tried.

I have installed windows 11 as Libvirt VM trying to copy your setup. After installation I was unable to select screen resolution as it was grayed out:

The solution with worked for me was to install virtio-win-guest-tools.exe. This file is an executable installer package provided by the Fedora project for Windows virtual machines (VMs) running on KVM/QEMU hypervisors. It contains a set of essential drivers and tools that improve the performance and compatibility of Windows VMs on these platforms.

After installation there is no need for restart, and I was able to select screen resolution:

Try if this works for you.

Hope this helps

Lubos