Laptop HDMI to DVI monitor not working "no signal"

Connecting HDMI output to DVI input is not straightforward due to HDMI carrying an HDCP-protected signal.

Monitors that don't have an HDMI port are not HDCP-compliant, hence can't display an HDCP-protected digital signal.

As a (legal) workaround you can try an HDMI splitter, those often strip HDCP from the signal, so it can be subsequently converted to DVI.