YOGA C630 WOS tip: Fx function keys vs hotkey - LenardGunda.com
Function Keys to Operate a Monitor & LCD Projector
display - Lenovo Thinkpad X1 Carbon 2nd Gen with broken screen - how to get it to use external monitor? - Super User
PLEASE HELP: Can someone with a lenovo y410p laptop tell me the exact combination of button presses needed to boot from USB? My screen is broken and you can't see BIOS settings