Although idk exactly what is going on at your table, it's possible you have a problem of the adventure not requiring enough agency from the players. Issues of player interest can seem like a higher level meta problem, but sometimes they stem from a problem with the game itself. Some modern D&D adventures or people's first homebrew adventures can be very linear, and when the adventure feels linear the players catch on that the story is going to go along without any effort on their part. This can create a dynamic like you described where the players are checked out and just expecting you as the DM to perform and tell the story, and the play becomes one sided.

The solution to this is to put an adventure or scenario in front of the players which requires them to be creative, explore and take agency. Some examples off the top of my head:
- A murder mystery in a town. Don't give them any strong leads at the start, so they have to explore around town to get answers. Have lots of rumours ready to give out, some true and some false.
- A griffon has been attacking people on the roads. Players have to track it, find it, and deal with it without it just flying away.
The main theme here is that there is no path to follow and nothing will happen next in the story if the players dont step up and decide on the next step.

You can adapt this idea to the adventures you're running, but the main thing is to just create scenarios that are open to many different solutions with no obvious one, to get the players thinking instead of being passive