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I have an Asus Zenbook Pro 14 Duo (UX8402VV) that hasn't had audio working in any Ubuntu since I bought it in August of 2023. I'm now using Ubuntu 24.04 and the problem has persisted. Asus seems to have a reputation for this broken audio in Linux on a lot of their laptops.

I can see the audio signal is working fine at the system level, including while using pavucontrol, so I assume this is a kernel/hardware issue just like is plaguing a lot of other Asus laptops.

I've tried fixes listed for other Asus models, but none of them work for my hardware.

I am also on the latest Linux kernel (6.8.7) which didn't help.

Here is a look at some relevant system information:

$ inxi -SMA
...
Audio:
  Device-1: Intel Raptor Lake-P/U/H cAVS driver: snd_hda_intel
  Device-2: NVIDIA driver: snd_hda_intel
  API: ALSA v: k6.8.7 status: kernel-api
  Server-1: PipeWire v: 1.0.5 status: active`

$ lspci
...
01:00.1 Audio device: NVIDIA Corporation Device 22be (rev a1)
Don Milligan
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1 Answers1

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Had similar issue on my UX482 running dual boot with Win 11.

Problem was that Windows when started somehow "locked" all audio outputs and when I restarted laptop back to Ubuntu, I couldn't get it to work. Even though everything looked correct. To this day I don't know what's causing this. All I know is a workaround that works every time.

Tried updating and downgrading kernel, changing sound servers between PulseAudio and PipeWire and I don't even know what else and nothing worked. Seems like the issue is under the OS layer.

WORKAROUND for me is booting to BIOS after leaving Windows. For example, when I need to use Windows, I restart my laptop, select Win and use it normally. When I'm done using it, I restart the laptop and instead of selecting either Win or Linux, I need to choose booting to BIOS. Once it starts, I can exit the bios immediately without touching anything there and go again in the boot menu. I can then choose my linux distro and sound works right. Beside this I never had any other issues regarding audio on ubuntu. Hope this is not OT.

František Salač
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