3.5 mm Jack issues with G430 7.1

Dec 12, 2018
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I decided to use my G430s with the headphone and Mic jack rather than USB. I found out that Logitech Gaming Software does not work when it is plugged into the jacks, so logically I used Realtek AM instead. To take on the full capability I set my setting to '7.1' but it didn't work - The audio was gone. 2.0, 5.1 and the other worked partially (Subwoofer refused to work) but I want to use 7.1. Is there a fix? Thank you!

P.S in the Audio tab on the taskbar it comes up as 'Speakers (Reatek HD Audio)' If that's relevant.