I set up my laptop computer (running Windows 8.1) and its peripheral devices using my new UD-3900 this week. Overall, things seems to work fine–except for one issue:
Before installing the DisplayLink drivers, I could duplicate the laptop screen display (resolution 1600 X 900) to my external 24" monitor (resolution 1920 X 1080) and the display on the second screen would automatically adjust to fill the entire screen. It appeared to scale to utilize the extra space.
Since the install, when I duplicate the laptop screen, it is like an exact duplicate of the smaller laptop screen on the larger external screen; there is an ~2 inch black border around the display on the second screen. When I switch the Windows setting to devices>project>second screen only, the resolution does adjust properly to the correct resolution of the larger screen (the PC screen of the laptop at this point is blank.)
This is not a major problem, but I did prefer the way it worked before the driver install. It’s just an extra procedure to go through before I can get to work. Also, I’m afraid that I will forget to reset the setting to “PC screen only” or “duplicate” display before I shut down, and possibly finding myself to trying login without a working laptop screen. (I’m not sure if this would happen, but I’d prefer not to find out.)