iPad Pro video output through USB-C to HDMI pauses

This video pausing issue with Amazon Prime Video on iPad Pro via USB-C to HDMI is caused by the app's cursor/activity detection system. Here's what's happening and how to fix it:

Root cause:

Amazon Prime Video on iPad detects user inactivity and pauses playback when connected to an external display to prevent accidental continuous playback. Moving the cursor keeps it from pausing because it registers as user activity.

Solutions:

1. Disable auto-pause in Prime Video app:

- Open Prime Video app

- Go to Settings (profile icon) > App Settings or Playback Settings

- Look for "Auto-Pause" or "Activity Detection" and turn it off

- Not all regions have this setting visible

2. Keep screen from sleeping:

- Go to Settings > Display & Brightness > Auto-Lock

- Set to "Never" while streaming

- The auto-lock can trigger the pause

3. Use Guided Access to prevent the app from detecting inactivity:

- Settings > Accessibility > Guided Access > turn on

- Triple-click side button to start Guided Access before streaming

- This keeps the app in a persistent active state

4. Try a different cable or adapter:

- Some USB-C to HDMI adapters cause signal detection issues that the app interprets as an inactivity event

- Try Apple's own USB-C Digital AV Multiport Adapter

5. Update the Amazon Prime Video app:

- Open App Store > search Prime Video > update if available

6. Use AirPlay instead:

- If your TV supports AirPlay, stream wirelessly from the iPad to avoid the HDMI detection issue

Setting Auto-Lock to Never (option 2) is usually the simplest fix for this issue.