Elgato 4K Pro 4K120 HDR VRR Passthrough
Question
Am I mistaken in believing that the 4K Pro is supposed to be capable of passing 4K120 HDR VRR to a TV/display?Problem
Trying to configure a friends capture setup. When I send 4K120 HDR VRR to a 4K Pro / through to his TV, the card's internal HDR tone-mapping doesn't work (washed out), and the signal is washed out on the TV.- HDR is enabled in Windows, when disabled it looks "fine" but TV is much less bright due to no HDR.
- If I use an HDMI 2.1 splitter to bypass passthrough on the 4K Pro, HDR is sent proper to the TV, but auto tone-mapping still doesn't work on the capture card. I have to manually configure it in OBS to get proper tone-mapping. Additionally VRR doesn't work when using a splitter, it seems the capture needs to be directly connected to the display to read the VRR.
- When outputting 4K60 HDR VRR to the 4K Pro with passthrough to the TV everything works. Auto tone-mapping, and colors look correct on the TV.
Relevant Hardware
- Elgato 4K Pro- Display - LG OLED-C1
- RTX 4090
- Certified Anker HDMI 2.1 cables on everything
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