If you can’t move the pointer the way you expected using head pointer on your Mac, try these suggestions.
If head pointer doesn’t seem to work: Make sure it’s turned on in Pointer Control settings. If it’s turned on but still isn’t working, make sure it’s not paused. Also check that the camera you’re using is turned on, facing you, and unobstructed.
If the pointer doesn’t move: If you or someone else is moving the pointer using a mouse or trackpad, head pointer pauses; when you stop using the mouse or trackpad, head pointer automatically resumes.
If the pointer moves erratically: Adjust the lighting around you to ensure your face and head are clearly detected by your camera.
If the pointer moves too far or not far enough: Adjust the pointer speed you set for head pointer. The lower the speed, the less distance the pointer moves when you move your face or head; the higher the speed, the farther the pointer moves.
If the pointer moves too slowly or quickly: Turn your face or move your head more quickly or more slowly.
If the pointer seems stuck on an edge of the screen: Make sure you’re centered in front of the screen, and that your head isn’t too far to the left or right. You may need to adjust the position of your display or camera.
If a message appears that head pointer failed: It’s possible the lighting is too bright or dark, that you’re too close to or far from the camera, or not centered in front of the screen. Try adjusting the lighting or repositioning yourself in front of your display or camera.
If the pointer is difficult to locate on the screen: Try recalibrating the Head Pointer.