Goal
Reduce recurrence of blank-screen events.

Steps
1) Disable display sleep / power-save on TVs/monitors.
2) Lock display resolution and refresh rate if possible.
3) Replace low-quality or long HDMI cables.
4) Schedule periodic KDS restarts (daily/weekly).
5) Document:

• Display model
• Connection type
• Frequency of black-screen events

Artifacts to Capture

• Time of occurrence
• Whether audio/touch still worked
• Display model and cable type
• KDS version/build