I have connected my HP Elite book to the Plugable UD3900. I have a Logitech wave (wireless keyboard and mouse). It is connected to the UD 3900.
Both keyboard and mouse feel very sluggish. Mouse is even worse. It is jumpy or does not respond for 10 seconds before it jumps. Keyboard is little better. It works 75-80% of the time without any issue, but once in a while it runs into un-responsive mode for few seconds before coming back to normal.
I went through this forum to find answers, but could not find anything that helps resolve it yet. I also turned off my laptop monitor and only have ‘1’ monitor connected through HDMI cable to UD3900. Still the same issue.