The screen goes to sleep
The wall asks the browser to keep the screen awake, but a laptop's power settings can override that. Set the laptop to never sleep while plugged in, and turn off the screensaver. On a TV, disable any auto-off or eco timer for the evening.
New photos do not appear
- Check the screen device has internet. Open any other site on it.
- Reload the wall page. If the connection dropped for a while the live feed reconnects on reload.
- Check the photo actually uploaded: it should be in Manage Event Gallery. If it is not, it is an upload problem, see a guest cannot upload.
Black screen or a small window on the TV
Put the browser in full screen (F11 on Windows, Ctrl+Cmd+F on Mac). On a projector, match the laptop's resolution to the projector's native resolution in display settings so the wall is not letterboxed.
The TV's built-in browser is slow or crashes
Some TV browsers struggle with a large gallery. Use a laptop or a Fire TV Stick instead; both are in show the wall on a TV.
The wall shows old test photos
Delete them from Manage Event Gallery; the wall updates immediately.
Test the night before
Ten minutes with the actual TV and cable at the venue saves you from finding out about an HDMI adapter at 7 pm on the day.