MacBook Pro recognizes the Projector but no display

On a projector I have used successfully in the past year:

Mack book pro m2 2022 USBC, running Sonoma, using Apple AV adapter works to display on a connected monitor, either mirror or extended. However the same configuration when connected to a Projector recognizes the projector, but will not display on the projector. In extended mode the mouse pointer is not displayed on either projector( which shows blue screen) or laptop screen initially. When I slide the track pad down the mouse pointer appears on the laptop screen and is functional. But cannot get anything to the projector screen, still blue.

When I switch to “mirror” mode, still nothing on the projector screen.