I find that whenever I reboot I have to open the lid first and then unplug my external keyboard for the keyboard to function.
NB: the keyboard is plugged into the USB hub on the monitor
but if I reboot with the lid closed the external display never functions until I open the lid and then close it again later.
NB: the keyboard is plugged into the USB hub on the monitor
but if I reboot with the lid closed the external display never functions until I open the lid and then close it again later.