I work most of the time with my Windows 10 laptop (Lenovo X1 Carbon, 2012 1. gen model) closed and an external monitor attached.
To achieve this I have to start the computer by
- opening the lid,
- press the start button,
- wait until it booted and
- the external monitor is active, then
- close the lid which puts the laptop into sleep after which
- I can hit a mouse button or key to make it "start" (unsleep) again
Of course this is a bit silly.
On the other hand I also work mobile, with no external monitor. One thing I can not compromise on is that the laptop indeed has to go into sleep when I close the lid (~ 15 years of conditioning).
Is there a better way to turn my laptop on if an external monitor is attached?