DeviceOK
SearchCheck my device
Home / Device types / HDMI Switch / Capture Path
HDMI Switch / Capture Path diagnostics

Test what the browser can see. Know when it cannot.

Use display, camera/capture and raw-bandwidth planning tools to narrow source, cable, switch and capture-device failures.

Run these first

Relevant live checks

Screen Resolution TestShow browser viewport, screen dimensions, and device pixel ratio.
→
Monitor Refresh Rate TestEstimate display refresh timing using animation frames.
→
Display Raw Bandwidth CalculatorEstimate raw uncompressed pixel data rate from resolution and refresh rate.
→
Webcam TestOpen your webcam locally to verify that the browser can access and display a live camera stream.
→
First diagnostic sequence

Do the high-signal checks before risky changes

  1. 1

    Simplify to one source, one cable and one display or capture device

  2. 2

    Confirm the target mode works without the switch

  3. 3

    Add devices back one at a time

What DeviceOK/browser can help check
  • Report the final browser-visible capture or display path
  • Calculate raw pixel bandwidth from entered resolution and refresh
What this browser page cannot prove
  • Read HDMI handshake, HDCP or EDID state generically
  • Certify a cable or switch for a video mode
  • Bypass protected content systems