I’m sure this has been asked and I will do a search but I have a new MBP at work (bought late last year). It is connected to a Samsung 4K monitor and I use Apple wireless keyboard and track pad.

The issue is start up - more than once I’ve opened the “lid” and pressed the start button and nothing happens. I do this several times and in the end hold down the button until it starts but with a password reset message. Not needing to reset the password I choose the keyboard not working option and then it starts and reboots as normal. 

Any advice is well appreciated!