With Fedora-Everything-netinst-x86_64-38-20230217.n.0 , install Workstation using virt-manager.
As I have one monitor physically rotated 90deg using 1280x1920 resolution, I would like the F38 guest with virt-manager able to using that resolution as well.
$ for p in /sys/class/drm/*/status; do con=${p%/status}; echo -n "${con#*/card?-}: "; cat $p; done
Virtual-1 connected
Then I added this to kernel command line: video=Virtual-1:768x1024
At the second stage of boot, text console changed to 768x1024. Once GUI mode is activated, it changed back to Wide format. After logon to, resolution used is 1280 x 800 . But, 768x1024 is now available in Display Settings. And chaning to 768x1024 works.
The exact resolution might not be listed, but it should change automatically based on the size of the graphical console window: Virtual Machine Manager > VM > View > Scale Display > Auto resize VM with window > Enable
Yes, out of the box Fedora guests works out of the box using: Virtual Machine Manager > VM > View > Scale Display > Auto resize VM with window > Enable
Although the particular resolution is not listed under Gnome’s Display Settings.