Odyssey G9 C49G95T does not sound the Nintendoswitch.

[Odyssey G9 aim poin]

Hello

I connected my Odyssey G9 C49G95T with a Nintendoswitch via HDMI.
Then the video is displayed, but the audio is not audible through the 3.5mm headphone jack.
What should I do?

[Odyssey G9 aim poin · Accepted solution]

I heard it when I switched from system to AV mode.