A user's laptop is projecting an image upside down when connected to a ceiling-mounted projector. Which of the following should the technician do to best resolve the issue?

Projectors designed for ceiling installation are physically mounted upside down. To compensate for this, they have a built-in configuration setting to flip the projected image vertically. This is the standard and most appropriate method for correcting the orientation. Adjusting the setting on the projector itself resolves the issue at the source without altering the user's laptop display settings, ensuring the laptop's screen remains correctly oriented for the user. This setting is typically found in the projector's on-screen menu under a name like "Projection Mode," "Ceiling Mount," or "Image Flip."

A. Changing the input source (e.g., from HDMI1 to HDMI2) selects which device signal to display and has no effect on image orientation.
B. Rotating the image from the laptop would also rotate the laptop's own screen, which is inconvenient for the user and not the intended solution.
C. Adjusting the display frequency (refresh rate) affects the smoothness of the image and can resolve flickering, but it does not change the orientation.

1. Epson America, Inc. (2022). PowerLite 118/119W/E20/X49/X51 User's Guide. Document ID: U11H978020UG. (Page 91, Section: "Projector Setup Settings - Extended Menu," describes the "Projection" setting with options for Front, Front/Ceiling, Rear, and Rear/Ceiling to orient the image correctly).

2. Massachusetts Institute of Technology (MIT). (n.d.). Audio-Visual Services for Classrooms: Projector Image is Upside Down or Backwards. MIT Information Systems & Technology Knowledge Base. Retrieved from https://kb.mit.edu/confluence/display/istcontrib/Projector+Image+is+Upside+Down+or+Backwards (This guide explicitly states to use the projector's menu to change the projection mode for ceiling-mounted units).

3. BenQ Corporation. (2021). Projector User Manual. (A typical manual includes a section on "Installation" or "Setup" that details changing the "Projector Position" setting to flip the image for ceiling mounting).