(Optional) - Make backup of your firmware first or you can restore the latest one from the update tool page.

Follow steps on the Cable matters firmware page linked above but use the firmware 'VMM61004k120hzRGB-Fullrom.zip' (extract first) are attached in this post. If you do not have VMM6100, you'll need another adapter.

Launch update tool and verify you have VMM6100.

The HDMI cable connected to the adapter will need to be connected to a tv/monitor for the next step.

Plug in cable matters adapter to a USB C port that supports DP on your Windows PC.Update the HDMI type to 'PC' on your LG OLED to whichever port you are going to use.(Use BetterDisplay: v1.4.5-beta or later!) BetterDisplay to extract/apply custom EDID.Cable Matters update tool to upgrade/downgrade firmware.Using Parallels will not work but using bootcamp on an Intel mac should. Windows PC with USB-C DP capabilities.No guarantee! U can test and report)Īnother Brand Adapters that seem to be working: (It can probably also work on another Brand Adapters with Chip VMM6100. USB-C>HDMI 2.1 Cable Matters Adapter ( CM Page) (Important it has to be Model Number: 201388-GRY with Chip VMM6100, ask CM support before buy !).PRIO: MacOS Ventura 13.2 or above is needed So basically things you'll need for RGB 10bit HDR Try to consolidate the instructions since they're dug in 20 different pages now

This is a new fresh thread to talk about this, because the other one has 46 sites now and does not have the correct Title! does make the first version of this FAQ and does continue support and update this FAQ: Apple limited HDMI-Transportstream over USB-C/TB to maxed found a solution to get more than this working!

Hdmi from mac to tv not working