The issue described is a framing problem, where the camera's field of view is not correctly capturing the subject. This is a direct result of the physical positioning of the external webcam. Unlike an integrated webcam with a fixed position, an external one must be manually placed and angled. If it is on an uneven surface or not aimed properly, it will only capture a portion of the user's face. This is a physical setup issue, not a technical malfunction related to drivers, connectivity, or software compatibility, which would typically present as a non-functional device or poor image quality (e.g., freezing, artifacts).

B. A driver issue would more likely cause the webcam to be unrecognized, malfunction entirely, or have poor video quality, not a consistent framing error.

C. The specific USB port used affects data transfer speed and power but does not influence the camera's physical angle or what it sees.

D. OS incompatibility would typically prevent the webcam from being detected or functioning at all, rather than causing a partial image due to poor physical aim.

1. University of Wisconsin-Madison

Division of Information Technology (DoIT) KnowledgeBase. "Web Conferencing - Webcam Troubleshooting

" Document 100007

Published 2020-04-20. The document lists "Check your camera's physical placement" as a primary troubleshooting step

advising users to "Make sure your webcam is sitting on a level surface and is at eye level." This directly supports that incorrect placement causes framing issues.

2. Logitech Official Vendor Documentation. "C920s Pro HD Webcam Setup Guide

" Part Number: 620-009263.003. The section "POSITIONING YOUR WEBCAM" provides explicit instructions and diagrams for placing the webcam on a monitor or tripod to achieve the correct angle and framing

underscoring that physical placement is key to a proper image.

3. University of Michigan

Information and Technology Services. "Troubleshooting Audio and Video Issues in a Video Conference

" Published 2023-09-26. In the "Video Issues" section

the first recommendation is to "Check that your camera is uncovered and pointing toward you

" highlighting that physical orientation is the most fundamental check for video display problems.