Dear Chris, I actually found that uninstalling and reinstalling the software solved the problem. I don't know what was wrong the first time around, but it's working fine now. Thanks for your time!
I have the same problem as bpiening. I have two pcs connected to a Dell S2722QC monitor. One is somewhat aging Dell Vostro laptop, and the other one is a Panasonic Let's Note FV3. When I open Display Manager on the Dell, it has all the menu options, including "Input Source", so it is easy for me to switch from the Dell to the Panasonic. On the other hand, when I open up Display Manager on the Panasonic, there is no "Input Source" option, and I have to go through the awkward process of fiddling with the fiddly buttons, which is unintuitive and unnecessarily time consuming to say the least. I'm wondering if this is a Windows issue because the Dell is still operating on Windows 10, whereas the newer Panasonic is running on Windows 11. Perhaps the software isn't optimized for Windows 11 yet? Any insight into the matter would be appreciated.
S2722QC, no input source tab in DDM?