Please note that these instructions are not offically supported or condoned by Nix and are not guaranteed to always work, but from my testing everything seems to work perfectly fine.

These steps may not be required if NixOS/nix#2374 is resolved.

These commands are required for both Fedora Workstation and Fedora Silverblue

This will work with either networkd or NetworkManager as a resolver. In fact, this is the only way to do bridged KVM (libvirtd) networking with NetworkManager.

If you're using NetworkManager (on a desktop or laptop, for example) on your KVM host, follow these instructions to set up a bridge interface.

Once you have the host bridge set up, proceed as follows:

1. Create a bridge network device inside KVM. Edit and save the below text as file host-bridge.xml:

Had to do this for some advanced networking with KVM, and couldn't figure out how to do it using the Nework Manager gui. Did find an article later that showed how to do it with nmtui, but it's so much easier to record what you did when using the cli.

To see what everything looks like before starting:

$ nmcli con show

• Install Fedora 36 and reboot. Make sure to prevent the screen from turning off at this point as that will completely hang the system.

  • Settings -> Power Management -> Energy Saving:

    • Unselect "Dim Screen", "Screen Energy Saving" and "Suspend session"

• Add i915.disable_power_well=0 to GRUB_CMDLINE_LINUX in /etc/default/grub

• This will make the laptop display turn off without crashing your system.