I keep running into a frustrating situation. Here's what's going on.
Step 1 - I leave my 2019 16" MacBook Pro plugged into an LG 5K Ultrafine monitor. After a while, the screen and the laptop go to sleep. The laptop lid is always closed.
Step 2 - When I wake up the computer, the LG 5K screen never shows anything (it's black). I know the MacBook Pro is awake because I hear interface sounds and I also feel my Apple Watch tap me when it automatically unlocks my machine. No matter what I do with the external keyboard and trackpad, the screen never comes on.
Here's what I've tried:
- I unplug the computer from the monitor and plug it back in. This makes the screen come back on about 30% of the time.
- I open the lid of my laptop, wait a while, and the monitor comes on about 70% of the time.
- I reboot the machine and leave it plugged into the monitor. This works 90% of the time.
Sometimes I get a kernel panic when trying all this and the machine hastily shuts off and I have to boot it up from scratch.
While MacBook Pros have almost always had sleep/wake issues since I first got one in 2007, it's noticeably worse with the 16" MBP. I know this because I also have a 15" MBP for work and it doesn't have these problems with the same monitor on my desk. It wakes the screen right up when I wake up the laptop with the bluetooth keyboard.
Has anyone run into this? Any suggestions?