The Problem: When you shut down or reboot your system from within macOS (by pressing the shutdown or reboot button), the system gives you a black screen on the next boot, and you have to perform a power cycle to fix it. I noticed the CPU and RAM red lights on the B550M Pro4 motherboard. What Causes This? The issue is caused by the USB LED controller on these motherboards. How to Fix It: There are two possible solutions:
Once the USB ports are displayed, search for the port with the LED controller connected to it like in this picture Once you've identified the correct USB port (for example, port 12), and it’s marked green (meaning it will be mapped), type the port number and press Enter. The port should then change to white. After this, go to option K. Build USBMap.kext to build the new kext and place it in your kexts folder. Don't forget to press Ctrl + Shift + R in your [link] [comments] |
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