Test whether you can push a picture to Rygel using GNOME Photos
How to test
- Run System Settings and go to the Sharing panel.
- Ensure Media Sharing is "active".
- Run GNOME Photos.
- Click a picture to preview it.
- Go to the top right menu (with the hamburger or gear icon).
- Click "Display on...".
- Select "Audio/Video playback on <your-own-computer>".
- The picture should show up in a separate top-level window.