Just a few notes out of the way- Yes, I tried both the latest ASUS drivers and latest international NVIDIA betas. Yes, I have set power management in NVIDIA control panel to "performance". And yes, I have tried complete restoration of laptop to ASUS ...

As we all know there's a global problem with G750 models regarding hissing static noise while headphones are connected to laptop. I browsed the forum and found no reference that ASUS even knows about the problem and is doing something about it.Just l...