I have an Intel laptop with HD Graphics 620 (i7-7600U, 220.127.116.1177 Intel gfx driver), 3D-Club CAC-2504 (uses MegaChips – MCDP2900, to convert the USB-C to HDMI 2.0).
I also have Vizio P75-F1 with UHD color enabled, and Picture set to “Computer” (which enabled 4:4:4 mode)
When I connect the computer to the TV, Win10 detects the TV as HDR capable and I can enable it under Windows display properties.
I tried MPC-HC, PotPlayer-64 as well as Windows Movies & TV.
After enabling HDR in Windows, Windows Movies & TV produces better colors (I assume it’s using pixel mapping to switch to SDR). So does MPC-HC if I use MadVR with appropriate settings (such as passthrough HDR to display). I expected to be able to see HDR10 shown on Vizio while watching HDR content (local MKV files), however, I can’t seem to make that happen.
So it seems that the computer THINKS it has an HDR connection, but somehow the HDR metadata is getting lost in the CAC-2504. I tried using RGB mode, YCbCr (in Intel control panel), 60Hz, 29Hz, 24Hz. None seem to send the HDR data (through a CAC-2504). I tried playing the same file through Vizio USB port as well as PLEX in Vizio and FireTV Stick 4K (newest one), and both produce HDR10 (however, they don’t give me Dolby Atmos…and that’s why I still need the computer to work)
Any suggestions? What am I missing?