As far as I can tell, because all the displays are flickering, the USB 2.0 devices (mouse and keyboard) continue to function during the problem times. I do not understand the question "does the problem still occur if you connect directly to the Yoga"? If the question is what happens when I connect a single external display to the USB 3.0 port, I have not tried this and cannot afford to operate in this fashion for hours to diagnose a highly intermittent problem. As for connecting with a USB 2.0 cable, that cable cannot drive three displays, so I am not sure why I would try that.
|