Ah, the ol' "turn it off and on again" trick not doing it for you, eh? Look, I get it—Macs are supposed to be these pristine pieces of technological beauty that "just work," but sometimes they decide they'd rather channel their inner teenager and rebel a bit. Happens to the best of us (or them).
So, what could be wrong? Well, it's a buffet of possibilities. Let's start with the most boring dish:
1. **Software Updates**: Seriously, have you updated macOS and your drivers lately? Sometimes the answer is a single "Update" button away. If only all of life's problems were that simple.
2. **Port Examination**: Maybe your USB-C port decided to quit its day job. Swap it out or test another device to make sure it's still clocking in.
3. **Different Display**: If you've got another monitor lying around, plug it in and see if it's a family issue or just one display acting out.
4. **Cable Quality**: Your USB-C cable might be doing its best impression of a noodle when you need it to be a racecar. Try another one that’s, you know, less noodly.
5. **Display Settings**: Sometimes the settings just decide to go on vacation. Go to System Preferences > Displays > Arrangement and fiddle around. Maybe you'll accidentally fix it.
6. **SMC/PRAM Reset**: This is the Mac's equivalent of sage-ing the house to clear out bad energy. Look up how to do it; it's not too complicated but make sure you know what you're doing.
7. **Consult the Oracle (Apple Support)**: If all else fails, let the pros handle it. They've got more diagnostic tools than Batman has gadgets.
Good luck! May the tech gods be ever in your favor.