![]() Now the whole section for the LinkDescription might be missing from the .plist on a clean install and doesn't seem to be recreated when rotating the screen either. The situation with HDMI seems to got a bit more complicated. Restart your Mac and it should properly output RGB color on the monitor on the next boot. ![]() ![]() You might need to make a backup and delete these 2 files: Users/username/Library/Preferences/ByHostįrom what I've seen, it seems that macOS Monterey 12.0.1 finally outputs RGB color by default on some monitors when using USB-C to DisplayPort cable on M1 Apple Silicone Macs. Then make a backup and remove duplicate displays plist files from these locations (if any): Make sure that you only have the main modified file in: There might be multiple duplicate plist files with the same name in different locations. You might need to update the integer on each one to get RGB color output on all displays. Note that there might be multiple instances of the PixelEncoding and Range keys in the same file, one for each output of your monitor and for different AirPlay devices. Multiple PixelEncoding and Range keys in the same plist file How to Edit and Convert binary plist filesĪpps based on this has created an awesome script written in Phyton that automates the steps and checks for duplicate files. To make things easier, I've created a step-by-step video tutorial of the whole procedure that should force RGB color output on your M1 Mac connected to an external monitor, and works on an HDMI-to-HDMI cable connection.īig thanks goes to the amazing community and all their help over the years to solve issues like this:Īpple Open Source Project Files for Displays and Graphics While doing a lot of testing on how the Dual-Cable workaround makes RGB to work on M1, I've discovered what changes it makes to macOS, and managed to create a more streamlined workaround without the need to use a second cable. Please feel free to ask in the comment section if you have any questions regarding this procedure. Hopefully this tutorial would be useful to someone. Potentially making the colors more accurate and the text a bit more crisp, even on older 1080p monitors. The end result is having your M1 mac output RGB color to your external monitor instead of YPbPr, Here are each of the Terminal commands mentioned in the tutorial, so that you can just copy and paste them: Please note that you're doing any changes on your own risk. The video also has Closed Captions (Subtitles) that you can enable, to make it easier to follow if needed. Here is the direct link to the video tutorial: This step-by-step video tutorial will guide you through the procedure of forcing RGB color output on your M1 Mac. Force RGB Color on M1 Mac How to Force RGB Color Output instead of YPbPr on your M1 Apple Silicon Mac for an External Monitor.
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