But, I am only getting one channel which I think is a failure of the output jack - the control panel mixer does show signal on both channels.ġ. I ran test using iTunes and it seems to only work when choosing Line outs 1/2 as the default audio device. I have a FSU USB and installed the latest drivers, 6.1.10. I have a similar dilemma but my Win 10 does see the device and works, but not consistently.