HDR should make supported movies, shows, and games brighter, richer, and more detailed in highlights and shadows. If HDR content looks no different, the TV may not be receiving an HDR signal.
HDR often has to be enabled in more than one place: on the TV, on the specific HDMI input, and on the streaming box, console, or player. Missing one setting can make HDR silently fail.
Does this affect you?
Use this guide if your HDR-capable TV does not show an HDR badge, games say HDR is unavailable, or streaming shows labeled HDR, Dolby Vision, or HDR10 look like ordinary video.
Enable HDR for the HDMI input
Many TVs keep enhanced HDMI features off per port until you turn them on.
- Open the TV settings menu.
- Go to the HDMI, Inputs, Connection, External Device Manager, or similar section.
- Look for HDMI UHD Color, Enhanced HDMI, HDMI Signal Format, Input Signal Plus, or a similar per-port setting.
- Turn the highest option on for the exact HDMI port used by your console, streaming box, or Blu-ray player.
- Repeat for any other HDMI port that needs HDR.
Turning HDR support on for HDMI 1 does not automatically enable it for HDMI 2. Check the port your device is actually using.
Use an HDR picture mode
Start HDR content first, then open the Picture menu. Many TVs show HDR-specific picture modes only while an HDR signal is active.
- Look for HDR Standard, HDR Cinema, HDR Game, Dolby Vision, or a similar mode.
- Avoid old picture modes that strip or flatten HDR processing.
- Watch for a small HDR, Dolby Vision, or HDR10 badge when the content starts.
- For games, use HDR Game Mode if available to reduce input lag.
Check the cable and source device
Older or low-quality HDMI cables can carry ordinary 4K while failing with 4K HDR. If HDR flickers, drops, or never activates, try a cable labeled Premium High Speed HDMI or Ultra High Speed HDMI.
The source device may also have its own HDR setting. On game consoles, check Display or Video Output settings. On streaming boxes and Blu-ray players, check video format, dynamic range, or HDR output options. Both the TV and the source must allow HDR.
Make sure the content is HDR
HDR turns on only for content mastered in HDR. A regular HD or 4K show without HDR will not trigger the badge, even on a fully compatible TV.
Look for labels such as HDR, HDR10, Dolby Vision, or HLG in the streaming app or disc menu. A brief black screen when HDR starts is usually normal because the TV is renegotiating the HDMI signal. It is a problem only if the screen repeatedly drops out or never returns.
Sources
- Samsung Support – Turn HDR on or off on your TV (2025)
- LG Support – Enable HDR on your LG TV (2025)
- HDMI.org – High Dynamic Range (HDR) over HDMI (2025)