Low severity
IPTV HDR Not Working — How to Fix
HDR and Dolby Vision on IPTV fail when source, player, cable, or TV settings aren't aligned. Step-by-step setup guide.
Symptoms
- TV shows SDR despite HDR channel
- Colors look washed out
- Black levels too gray
- Dolby Vision logo doesn't appear
Likely Causes
- Source channel not actually HDR
- HDMI 2.0a+ cable needed
- TV HDR mode not enabled
- Player doesn't support HDR passthrough
Step-by-Step Fixes
- Enable HDR on TV input
Samsung: HDMI source > UHD Color > ON. LG: Picture > HDMI Ultra HD Deep Color: ON.
- Use HDMI 2.0a+ Premium cable
HDR requires bandwidth that older HDMI 1.4 cables can't deliver.
- Set Firestick to HDR Always
Settings > Display > Display: Adaptive HDR or Always HDR.
- NVIDIA Shield: Match Dynamic Range
Apps & Services > [IPTV app] > permissions. Allow HDR passthrough.