DisplayPort 1.2 - Page 1

Download Virtual Audio Cable (VAC)
https://vac.muzychenko.net/en/download.htm
Install VAC Free (works fine for one input and a few outputs)
Copy and paste mmsys.cpl into windows start menu and press enter
Under Playback, Right Click on Line 1 and select set as default device
Run Audio Repeater (MME)
in Wave in you choose Line 1 (Virtual Audio Cable)
in Wave out you chose the output device you want the sound to output too
Run another Audio Repeater (MME)
in Wave in you choose Line 1 (Virtual Audio Cable)
in Wave out you chose the output device you want the sound to output too
You can repeat the Audio Repeater (MME) part according to amount of output you want

Altenative you can use VB-Audio VoiceMeeter https://vb-audio.com/Voicemeeter/banana.htm

Review

Had to get a new Startech HDMI cable as my old generic one was giving me blinking black screen after swapping cables it works perfectly. it seems its a little picky on the cables

The Crimson Additional settings are missing pixel format and overscan option, hope this can be fixed by firmware or driver update

Customer Support

when i asked about a firmware update they responded in 14 minutes. Now thats pretty fast

First setup

Get a High Quality 4K Cable Club3D CAC-1310 or Startech HDMM1MP
Turn off UHD Colour on Samsung TV
Set Colour Depth in Crimson Additional Settings to 8bpc
Set Resolution to 3840 by 2160, True Color (32 bit), 60 Hertz in Settings > System > Display Advanced Settings > Display Adapter Properties > List Modes

still issues? try a newer crimson driver

My Setup:

AMD A10-7800 APU
16GB RAM (2x8GB 1866mhz)
Windows 10 x64 with Crimson 16.1
Sapphire Radeon HD 7750
Samsung UE55HU7505 55" UltraHD
Club3D 1.2 to HDMI 2.0 Adapter (CAC-1070)
Startech Pro Series Metal High Speed HDMI Cable 2M (HDPSMM2M)

Comments:

CAC-1070 REV A0-00 FW:7.0e 1552
Also tested with HD 7970 3GB Reference Model
UHD Colour Mode must be enabled on the HDMI Port (Samsung)
Renaming HDMI1 to PC might get you 4:4:4 (Samsung)
I need to test it on newer drivers on linux to see if its supported there

Output Audio Simultaneously to Multiple Outputs in Windows

Club3D DisplayPort 1.2 to HDMI 2.0 Adapter User Review & Setup Guide