I have been fighting an issue for several years now with 2 different soundbars, on 2 or 3 completely different pcs . When i connect the soundbar to my Nvidia 3080 (same issue with 1660 ti and 3060 ti) with hdmi, windows detects it, displays the proper surround options, works just fine, until the pc goes to sleep or powers off. Then windows "forgets" the soundbar is actually a 5.1, or 5.1.4 with my new system and auto reverts to stereo mode, with all the other surround options greyed out. Running the trouble shooter does nothing. Fiddling with sound settings, configuring speakers, making the device default or any combination of settings changes in the sound settings does nothing. I have spend 10s of hours messing about and the only thing that seems to work is power cycling the soundbar itself while the pc is on and the hdmi plugged in. Upon power cycling it fires right back up and i can use 5.1, 7.1 or atmos with my Elevate. It works perfect until the next sleep or power down. Eco power is turned off on the soundbar (auto sleep timer after inactivity) as that could also trigger the pc flipping back to stereo mode.
It did it with my old vizio sb3851-d0 and is now doing it with my new Vizio Elevate. With the old bar i eventually got frustrated and gave up and just connected with the optical cord and accepted i was only getting 2 channel audio. Now that i have the elevate, I do not want to have to power cycle my soundbar daily or everytime i wanna play a game or watch a movie in surround or atmos. I have seen many similar issues online with other revievers, different brands of sound bar ect, without finding any sort of answer, so even though in my case i have only experienced it with vizio products , it appears to be not just because its a vizio. I considered buying a receiver and hooking it up that way until i saw people having similar issues trying that also. As a test i did hook the soundbar up to a TV in another room using hdmi Arc...worked perfectly first time as it should.My old bar is currently hooked up to the same tv with arc in a spare room, i will not replace my qd-oled monitor with a tv for gaming. I have tried switching HDMI ports on the GPU, same issue. Any help would be massively appreciated.
It did it with my old vizio sb3851-d0 and is now doing it with my new Vizio Elevate. With the old bar i eventually got frustrated and gave up and just connected with the optical cord and accepted i was only getting 2 channel audio. Now that i have the elevate, I do not want to have to power cycle my soundbar daily or everytime i wanna play a game or watch a movie in surround or atmos. I have seen many similar issues online with other revievers, different brands of sound bar ect, without finding any sort of answer, so even though in my case i have only experienced it with vizio products , it appears to be not just because its a vizio. I considered buying a receiver and hooking it up that way until i saw people having similar issues trying that also. As a test i did hook the soundbar up to a TV in another room using hdmi Arc...worked perfectly first time as it should.My old bar is currently hooked up to the same tv with arc in a spare room, i will not replace my qd-oled monitor with a tv for gaming. I have tried switching HDMI ports on the GPU, same issue. Any help would be massively appreciated.