[dcow]

I am using the LG Ultrafine 5K (so it’s a TB monitor) and it takes maybe 1.5s to 5s longer than the built in display (which wakes instantly) to turn on.

I do occasionally have an issue where the brightness on the built in display is borked and won’t adjust back to the correct level for anywhere between 30s to a few minutes.

And then I don’t know if it’s my monitor or the M1, but sometimes there will be a messed up run of consecutive pixel columns about 1/10th of the screen wide starting about 30% from the left of the display. The entire screen in that region is shifted a few pixels upwards. Sometimes it’s hard to notice it but once you do it can’t be unseen. Replugging the monitor into the M1 resolves the issue.