macbook pro m1 external monitor won't work

tonycspc wrote:

I have the new MacBook Pro m1 and it won't run an external monitor.

Get help with video issues on external displays connected to your Mac - Apple Support
 https://support.apple.com/en-us/HT201177

MacBook Pro (13-inch, M1, 2020) - Technical Specifications

Sounds like a compatibility issue between the new Mac and your dock. Perhaps try Apple’s USB-C Digital AV Multiport adapter.

USB-C Digital AV Multiport Adapter - Apple

Connected how?