How to 4k & 120 Hz on your Xbox Series X/S (Override HDMI)
To enable 4K resolution and 120 Hz refresh rate on your Xbox Series X/S, follow these steps:
1. Check Your TV/Monitor Compatibility
Ensure your TV or monitor supports 4K resolution and 120 Hz refresh rate via HDMI 2.1. Some TVs require enabling specific settings for 120 Hz.
Use the Ultra High-Speed HDMI 2.1 cable included with your Xbox Series X or Series S.
2. Set Up Your Xbox Series X/S for 4K and 120 Hz
Update Your Console:
Go to Settings - System - Updates.
Ensure your Xbox is updated to the latest system firmware.
Enable 120 Hz Refresh Rate:
Navigate to Settings - General - TV & Display Options.
Under Display, set:
Resolution to 4K UHD.
Refresh Rate to 120 Hz.
If 120 Hz isn’t selectable, check your TV or monitor compatibility and HDMI connection.
Calibrate 4K Settings:
In the same menu, select 4K TV Details to view supported resolutions and refresh rates for your display.
Ensure all green checkmarks appear for 4K at 120 Hz.
3. Optimize Your TV/Monitor Settings
Enable 120 Hz Mode:
Access your TV’s settings and enable 120 Hz or Game Mode.
On some TVs, this may be under Input Settings or HDMI Enhanced Format.
Use the Correct HDMI Port:
Many TVs only support 4K 120 Hz on specific HDMI ports (usually labeled HDMI 2.1 or eARC).
4. Enable HDR and VRR for Enhanced Experience
In Settings - TV & Display Options, enable:
Allow HDR10 for high dynamic range visuals.
Allow Auto Low Latency Mode (ALLM) for reduced input lag.
Allow Variable Refresh Rate (VRR) for smoother performance during gameplay.
5. Verify Your Setup
Test a game that supports 4K 120 Hz (like Halo Infinite, Fortnite, or Call of Duty: Warzone).
If your TV or monitor has an on-screen FPS or refresh rate counter, use it to confirm.
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