Learn how to make your i3CONNECT display automatically switch to your laptop’s video signal when you plug in your HDMI or USB-C cable. If auto‑switch isn’t available or fails, you’ll also learn reliable manual workarounds.
Before you start
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Know which port you’re using on the display (e.g., HDMI 1, HDMI 2, USB‑C 1). You may need to select it manually during testing.
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Have a known‑good cable for each type you plan to test (e.g. one HDMI and one USB‑C).
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Do not use a hub/dock/adapter during this test.
Quick fix checklist (most cases)
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Enable auto input switching on the display by going to Settings > If it’s already On, toggle Off, then On again to refresh the logic.
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Swap the cable. Use a short, known‑good HDMI or USB‑C cable.
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Try another output on your laptop. If you’re using a dock/adapter, test without it.
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Try a different input port on the display (e.g., HDMI 1 → HDMI 2). Manually select that port to verify image.
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USB‑C specifics: use a cable that supports DisplayPort Alt Mode and keep it under 1.5 m. Confirm your laptop’s USB‑C port supports video output.
Step‑by‑step: Enable and test auto input switching
1) Turn on and access Sources
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Power on the i3CONNECT display and your laptop.
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Open the display’s Side/Quick menu and go to the Sources list. Identify which inputs are detected (active ports are usually highlighted; inactive are greyed out).
2) Enable auto input switching
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Open the display’s Settings (or System/Input settings). Look for Auto Source Switch / Auto Input Switching and toggle it On.
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If already On, toggle Off → On to refresh. Return to the Sources list.
3) Connect and verify
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Connect your laptop with the chosen cable (HDMI or USB‑C). Wait a few seconds for the display to sense the active signal.
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Expected behaviour: the display switches automatically to the new active input. If it doesn’t, manually select that exact input in the Sources list to confirm the image appears.
If auto‑switch still doesn’t work
Use these targeted checks to isolate cabling, port, or device capability issues. Perform them in order and test after each change.
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Swap the cable
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HDMI: use a certified High Speed cable. Avoid long or damaged cables.
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USB‑C: ensure the cable supports DisplayPort Alt Mode and is under 1.5 m. Charging‑only/data‑only cables won’t carry video.
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Change the laptop output
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Try a second USB‑C or HDMI port on your laptop, if available.
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Bypass adapters/docks: connect the cable directly to the laptop and to the display.
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Change the display input port
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Move from HDMI 1 to HDMI 2 (or USB‑C 1 to USB‑C 2). Then manually select that input to verify a picture appears.
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Confirm laptop video capability on USB‑C
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Check your laptop’s specs for DisplayPort Alt Mode on the USB‑C port. If unsupported, use HDMI or a known good USB‑C → HDMI adapter that carries video.
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Manual fallback workflow
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Open the Side/Quick menu → Sources, and select the exact port you used (e.g., HDMI 2).
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On your laptop, set display mode to Duplicate or Extend. Windows: Win+P. macOS: Displays settings in System Settings.
Expected result: The i3CONNECT display switches to the newly active input automatically. If not, a manual selection reliably shows your laptop image.
Advanced tips
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If an input was renamed by IT, it may not appear as “HDMI 1/2/3”. Check the Sources list for custom labels and try them.
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If you see a black screen after switching, reselect the input or briefly toggle the display’s sleep/backlight using the front button or remote.
When to escalate
If all steps above fail across multiple laptops, multiple cables, and multiple ports, the issue may be an input controller/hardware fault. Capture the details you tested and contact support with photos, laptop models, and cable types used.