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#1 2026-02-10 10:48:19

Roms.ch
Member
Registered: 2026-02-10
Posts: 1

Hybrid GPU (amd/nvidia) no sound on external display via usbC-DP

I have set up my computer fully on Arch. Bye Windows.
I am running only one issue on my ROG G15 GA503.
When running the system with hybrid GPU, the external dsiplay image is correctly sent to external display.
Unfortunately, I cannot use the audio on that display since it's not available through pavucontrol.
After some testing, this issue occurs only on the amd GPU. If I run the computer fully on dedicated Nvidia GPU. sound is OK.
I was first thinking of early loading and so on but everything seems OK on that part.
On pavucontrol, external sound is on profile "Prod audio".
If I force it to hdmi output, it says not connected.

Any idea ?

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