Comment 35 for bug 1922334

@koba,
Yes. Even if I disconnect everything but the monitor from TB16 and the remaining USB-Cs on the laptop, keep the laptop lid open and use the built-in kb/touchpad to lock/unlock the screen, it triggers about 1 in 3 times. With the lid open, the laptop screen wakes up, but the external remains stuck asleep.

Start up -> Log on -> Super+L -> Wait for the monitor to show "No signal detected" -> Wait for the monitor to sleep, the LED indicator on it goes orange -> Wait 3-5 seconds -> Press any key -> 1 in 3 times (but not every third, can be many working/not working a row) reliably triggers it and the monitor does not wake up.