Since the last update (21A5534d), my MacBook doesn't detect my 2nd display. I've tried swapping the display with a new one and trying different connection methods. My MacBook's built-in display goes black for a moment when I attach the cable, but nothing else happens.
I seem to remember that the System Preferences > Displays used to have an option for manually detecting a display, but it doesn't appear to be there any more.
I hope I'm not the only person experiencing this.
I have the exact same issue. I am a photographer and my livelihood depends on my editing which I do on the external monitor. Now suddenly after the update I can no longer use my external monitor. This makes me switch to windows right away. This is purely a case of cheating.
I have the same exact issue too. The button for manually detecting an external display in the display settings window doesn’t appear when I hold down the option key. I tried connecting the same HDMI cable and monitor to another MacBook Pro with Monterey and the second display worked. I also tried putting my iMac to sleep and waking it up. I also disconnected and reconnected the HDMI cable while my iMac was powered up. I also reset the NVRAM and PRAM on my iMac, but still no good. I tried entering safe mode on my iMac, still no good. None of the methods suggested on YouTube or online seem to work. Finally, I downgraded to OS X Mavericks and the second monitor did work on my iMac. This proves that it’s not a hardware issue with my iMac and must be a driver issue. Monterey is trash!
Same issues here. After a couple of weeks with Monterey, my 2nd monitor will not work. Everything else on the hub works. Every other port has been tried and the monitor connected directly. Nothing works. And, holding down OPTION to toggle the "detect external monitors" button is also not available since Monterey.