Solved Odd Sound Issue

My PC was working yesterday. Today, silence!
But the odd thing is that if I take a look in the Windows Sound Configuration, the Speakers are selected, as they should be, but when any app plays a sound, there is no movement on the level display to the right.
If I select a different audio output device then everything works as it should, with the level meter working.
So I am trying to understated what fault could cause a loss of sound and the big hint is that the level meter to the right failing to function.

Oh, I found it.
For some strange reason, Windows had changed the speaker mode to 5.1.
I have no idea why it did this, and why it affected the level display, but there you go.
I can reproduce the problem and at least will know what to do if it happens again.

PocahToo said:

Oh, I found it.
For some strange reason, Windows had changed the speaker mode to 5.1.
I have no idea why it did this, and why it affected the level display, but there you go.
I can reproduce the problem and at least will know what to do if it happens again.

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Thank you for posting how you fixed your problem. It may help others that might come across this problem.