Hopefully the photo below shows the situation: I've got a couple of layers of drywall sandwiched together at the corner of a doorway. Because of the extra layer, I can't fasten on the corner bead properly - it's not quite wide enough to reach.
There are two ways I can think of to fix this.
Solution #1: Mud and tape up the gap on the left, fasten the corner bead with screws on the right, but just mud on the left. Or maybe I can screw right into the un-papered edge of the drywall at left?
Solution #2: Trim the drywall back to a stud on the left, trim down the sheet at right (just the width of the drywall), and apply a new piece of drywall on the left so that it buts right up to the corner.
I'm of course hoping that I can get away with solution #1, because it's easier. But I don't have enough experience to know how to proceed. All advice appreciated.