Lenovo P620 rear audio port audio cut outs

My Lenovo P620 has a Realtek ALC4050H USB 2.0 chip and the front speaker/headphone jack works perfectly, but the rear port will go into USB D2 power state after 10 seconds causing audio cut outs when it decides to wake up to D0 state. Changing windows power settings has no effect on this audio USB 2.0 buss.
I found a Linux Ubuntu forum concerning the P620’s rear audio port where they had “Use helper to the correct way to disable USB autosuspend.”
I’m not sure how to do this using Windows or even if it’s possible. If it is, I’m sure some here might know of a registry mod that will correct the D2 power state on that USB audio device.

I’ve tried that… it didn’t work. It still went into D2 mode after 10 seconds. It’s going to need a big hammer to nudge it I’m afraid. The Ubuntu forum mentioned to “use a helper to disable USB auto suspend” I’m guessing that could be a registry mod or perhaps even a driver mod.

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I found a solution. It's not the hardware but the driver. I changed the Realtek driver to the Windows USB Audio 2.0 driver and the problem went away. The Realtek driver supports power mode D2 and goes to sleep after 10 seconds. The Windows USB Audio 2.0 driver supports power states D0 or D3... it doesn't go to sleep after 10 seconds. It would be nice if someone could mod the Realtek driver removing the D2 power state. Just a thought...