VoiceMeeter Banana no longer recognizing two audio outputs as distinct

[katana]

Hi there. After updating my Nvidia graphics drivers to the latest version, I noticed two things changed:

1: Naming of HDMI or DisplayPort devices connected to the graphics card changed and no longer is suffixed with a different number.
2: In VoiceMeeter, I now am only able to select *one* of my monitors as a Hardware Out. Attempting to specify the second one has no effect and does not change the hardware out at all.

So, now I can only route audio to one monitor, whereas before I was able to interact with each monitor independently. This is what I currently see in VoiceMeeter Banana:



The second device named "C27F591" cannot be selected *at all*.

For reference, this is the Playback Options menu and what it lists:



Note the two C27F591 devices - only one is being locked by VoiceMeeter, ever. Prior to the Nvidia update, one of these was typically named C27F591-0, and the other named C27F591-4 or C27F591-8.

I currently use the following setup:

EVGA GTX 1070 [via displayport x2] -> DisplayPort KVM [via displayport x2] -> Samsung C27F591 [x2]

I've also tried taking the DisplayPort KVM out of the picture in troubleshooting to confirm that it is not the issue, and have verified that it does not affect the problem.

Wild guess: something is probably going by the device name for selecting the hardware out?

[Vincent Burel]

yes, the fact they have the same name can bring confusion, and finally audio engine can try to use a disable device...

[katana]

Unfortunately, the problem lies in that I cannot use both (one on A, one on B).

I literally cannot choose this anymore. Something prevents me from selecting the second entry. No visible errors occur, but it just will not select the entry.

[Vincent Burel]

the second one on your list is disabled... (maybe because disconnected)... this on ecannot be setected...

what i don't understand i why you are talkgin about "B" ... you can select nothing for B BUS in Voicemeeter.

[ragnar.jensen]

It's been a couple of months, so maybe you alredy got it solved, but anyway...

Have you tried to rename one of the outputs? I had to do it once, when a speech recognition program refused to use my microphone, because the input was named "Line". It just didn't show the input in the list of what it had recognized as valid inputs. When I renamed the input to "Microphone" the input immediately showed up in the list. The program was definitely looking for names that indicated microphones.

I have four NVIDIA outputs with the same name - "NVIDIA Output":

four_like_before.jpg (25.9 KiB) Viewed 18895 times

In the "General" tab, you can give it a new name.
The box with the name is an editable field:

four_like_change.jpg (17.46 KiB) Viewed 18895 times

The same four outputs, but now with unique names:

four_like_after.jpg (24.79 KiB) Viewed 18895 times

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Ragnar