Add note about the pang12/13 switch (#1179)

* Add note about the pang12/13 switch

* webcam: Reword article to better incorporate pang12/13 switch

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Co-authored-by: Aaron Honeycutt <aaronhoneycutt@proton.me>
Co-authored-by: Jacob Kauffmann <jacob@system76.com>
Co-authored-by: Francis Smith <fs1995@ymail.com>

content/webcam.md

@@ -16,10 +16,14 @@ section: hardware-troubleshooting
 tableOfContents: true
 ---
 
-If you can’t see the image from your webcam or you receive a "No device found!" error when you try to use it: press <kbd>Fn</kbd>+<kbd>F10</kbd> to turn cycle the camera on, and then restart a webcam application like <u>Cheese</u>. You will now see the image from the webcam in the app.
+If you can’t see the image from your webcam or you receive a "No device found!" error when you try to use it, ensure that it's not toggled off.
+
+- On most System76 laptops, press <kbd>Fn</kbd>+<kbd>F10</kbd> to toggle the camera on, then restart the application using the webcam (such as <u>Cheese</u>).
+- On some Pangolin models (pang12 and pang13), there is a physical switch on the left side of the computer (while facing the screen). Ensure the switch is switched on, then restart the application using the webcam (such as <u>Cheese</u>).
+  - The Pangolin models with a physical webcam switch do not have a webcam toggle key combination.
 
 ![Cheese](/images/webcam/cheese.png)
 
-If your webcam is not working after toggling it on and off with the keyboard key, check the menu of the software application you are using. In the devices menu, determine if it's recognizing your webcam and if so, make sure it is selected as the device to use for that application. If nothing is showing in the devices options, your webcam is turned off or may require hardware repair.
+The key combination or switch controls the visibility of the webcam on the USB bus at the device level. Applications do not get notified of new devices, and will need to be restarted to discover the webcam after toggling it on.
 
-The <kbd>Fn</kbd>+<kbd>F10</kbd> combo controls the viability of the webcam on the USB bus at the device level. Applications do not get notification of a new device and will need to be restarted to do device discovery again.
+If your webcam is still not working after toggling it off and on again and restarting the application, check the application's menu. In the application's device settings, determine if your webcam is listed and, if so, make sure it is selected as the device to use for that application. If nothing is showing in the application's device settings, then your webcam may be turned off, physically disconnected, or in need of hardware repair.