I'm throwing this out there as a last ditch effort to see if there is some fix I haven't tried yet.
While working today using my external LG UltraSharp display with the 16" MBP open as a secondary monitor, the XDR (built in) display just went black, as if it was going to sleep, but the external display kept working. Thinking this was just an external monitor glitch, I unplugged the display, but the laptop display did not reactivate. After several hard reboots and opening and closing the lid, it finally came back to life. So I wrote it off as some sort of software issue and got back to work. Then, maybe an hour later, the display went black again. This time I have not been able to get it to come back no matter what.
What is odd is that I can see just a faint shadows on the screen when I move windows around and swipe between spaces. It also responds to the backlight dimming control and I can see the backlight get brighter.
Things I have tried:
- Max brightness on the XDR display
- Various combinations of screen mirroring/refresh rates/resolutions on the XDR display
- Various combinations of hard/soft reboots and power cycles. Both with and without the external monitor connected
- Resetting nvram/pram
- Booting into recovery mode (have to use external monitor) and running disk util checks. No issues found.
- Reinstall MacOS from recovery mode
- Calling phone support (they literally had no suggestions)
I am afraid I'm going to be headed to the (not very close) genius bar. The problem is that this is a BTO machine and apple is showing ~2 months out on their order page.
Any other ideas for things to try?
Edit: fixing typo
While working today using my external LG UltraSharp display with the 16" MBP open as a secondary monitor, the XDR (built in) display just went black, as if it was going to sleep, but the external display kept working. Thinking this was just an external monitor glitch, I unplugged the display, but the laptop display did not reactivate. After several hard reboots and opening and closing the lid, it finally came back to life. So I wrote it off as some sort of software issue and got back to work. Then, maybe an hour later, the display went black again. This time I have not been able to get it to come back no matter what.
What is odd is that I can see just a faint shadows on the screen when I move windows around and swipe between spaces. It also responds to the backlight dimming control and I can see the backlight get brighter.
Things I have tried:
- Max brightness on the XDR display
- Various combinations of screen mirroring/refresh rates/resolutions on the XDR display
- Various combinations of hard/soft reboots and power cycles. Both with and without the external monitor connected
- Resetting nvram/pram
- Booting into recovery mode (have to use external monitor) and running disk util checks. No issues found.
- Reinstall MacOS from recovery mode
- Calling phone support (they literally had no suggestions)
I am afraid I'm going to be headed to the (not very close) genius bar. The problem is that this is a BTO machine and apple is showing ~2 months out on their order page.
Any other ideas for things to try?
Edit: fixing typo
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