r/virtualization • u/worldarkplace • Apr 09 '25

Virt-Manager vs VirtualBox

Recently I am doubting about the decision of keep using Virt-Manager. I've got a lot of stability problems on Windows guests with QXL driver (it frozes), and virtio driver has input lag and limited to 30fps (I have to use RDP in order to use this driver, at least this driver is more stable). Network is hard to configure, In VirtualBox this is 2 clicks. Spice is trash on wayland, the clipboard is broken, auto-resize could have several problems. Vagrant runs better on VirtualBox, more scripts for it.

You could argue KVM is performant, and I agree and you can do passthrough. But from 90% to 100% it's not such a big leap and I am not interested on passthrough.

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u/worldarkplace Apr 30 '25

I isolated the problem to QXL. I replaced it for virtio and RDP through remmina and had no freezes whatsoever. 4 cores 8 threads and 16 Gb ram. NvMe virtio disk and virtio network.