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Why can't I use 4k, allm , vrr ect on HDMI like it does with auto detect?

Devon 20 Reputation points
2025-10-11T10:52:40.0333333+00:00

I have always wondered why I can use 4k 120hz, allm, vrr and other when my video and fidelity is set to auto detect on my Xbox but when I switch to HDMI ,all those settings are unaccessible. I figured having a HDMI 2.1 monitor would open those settings up but I really would like to know why that is not possible. Genuinely curious

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  1. Gade Harika (INFOSYS LIMITED) 1,260 Reputation points Microsoft External Staff
    2025-10-14T09:41:02.4933333+00:00

    Here’s a step-by-step troubleshooting checklist with visuals for enabling 4K, 120Hz, ALLM, and VRR on Xbox Series X/S:

    1. Keep Auto Detect Enabled
    • Go to Settings → General → TV & display options.
    • Under Video fidelity & overscan, select Auto-detect (recommended).
    • This ensures Xbox reads your monitor’s EDID and unlocks advanced features.

    2. Use the Correct HDMI Cable and Port

    • Plug the Ultra High Speed HDMI cable (included with Xbox) into:
      • HDMI 2.1 port on your TV/monitor.
    • On your display:
      • Enable Enhanced HDMI or Game Mode in settings.

    3. Enable Features in Xbox Settings

    • Go to Settings → General → TV & display options → Video modes.
    • Check:
      • Allow 4K
      • Allow 120Hz
      • Allow variable refresh rate
      • Allow auto low latency mode

    4. Update Firmware

    • Update your TV/monitor firmware for HDMI 2.1 support.
    • Update Xbox system software:
      • Settings → System → Updates.

    5. Avoid Intermediate Devices

    • If using a soundbar or receiver:
      • Ensure it supports HDMI 2.1 passthrough.
        • Otherwise, connect Xbox directly to the display and use eARC for audio.

    Why HDMI Override Disables These

    Manual HDMI override bypasses EDID negotiation, so Xbox cannot confirm advanced features and disables them for compatibility.

    Tip: Always keep Auto Detect enabled for best results.
    Let me know if the issue persists after following these steps. I’ll be happy to assist further if needed. If the issue has been resolved, please click "Accept Answer".

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