SOLVED: Compaq cq 56 starts up fan runs but no screen - Fixya
Amazon.com: Wavlink MacBook Pro Docking Station Dual 4K Display 7 in 2 Multiport Laptop Docking Station for MacBook Pro 2016+, Upper USB C Port 4K@60Hz & 100W PD, HDMI 4K@30Hz, SD/TF Card
Compaq Presario CQ56 Notebook PC and HP G56 Notebook PC
Compaq Presario CQ56 Notebook PC and HP G56 Notebook PC
Compaq Laptop Black Screen Capslock Flashing Continuously - YouTube
HP Compaq CQ62 Blinking caps lock key fix - YouTube