Screen resolution in VirtualBox [SOLVED]

That is weird that xrandr sees lotsa of possible resolutions but not 1920x1080 itself!  Arandr uses xrandr in the background, so the monitor settings GUI likely offers you the exact same choices as you listed.

Anyways, to work around it, install virtualbox guest additions. Then you can set virtualbox resolution from the host side to anything at all.  Plus that will allow you to enable copy/paste between guest/host.

To install guest additions, hit right control+home, insert guest additions CD. Then mount that CD in the guest OS, either from command line, or click on it in thunar. Then run the VBoxLinux script in that folder - for example in thunar, select open command prompt here, sudo bash VBoxLinux then hit tab to autocomplete cuz I don't remember the rest .

I found a much easier way to do it linuxconfig.org/virtualbox-install-guest-additions-on-ubuntu-22-04-lts-jammy-jellyfish