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virt-manager plays fine with hidpi on Wayland. On the opposite side, VirtualBox’s GUI is super buggy in Wayland.

It’s basically the opposite for both. I use virt-manager because the GUI is simpler (and setting up virtualbox is a nightmare anyway).

Regardless, this feature is a step in the right direction. I’m wondering if distributions will pick it up or if it will ever be integrated upstream.

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That's a very recent change to virt-manager, so recent it's on nixos-unstable, but not on nixos-23.11. So it might be in Fedora 39 and some rolling-release distros... and nowhere else.

Could you link the change? At least a few days ago virt-manager still seemed to have scaling issues with guest displays, on nixos-unstable. I had viewer scaling on though as a workaround, so maybe I just didn’t notice.

It's not perfect. On older versions, it'd sometimes add a black border the size of your scaling factor. It still reports your window size times your scaling factor as internal resolution with guest additions though.

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