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alsa-project / alsa-lib

The Advanced Linux Sound Architecture (ALSA) - library
GNU Lesser General Public License v2.1
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Bug in the ALSA driver 'snd_usb_audio' #105

Closed rombru closed 3 years ago

rombru commented 3 years ago

Hello, I'm not an expert in linux systems. I will try to give a maximum of information.

I've bought Bowers & Wilkins PX7 headphones. They doesn't work using USB on Ubuntu. Using Ubuntu and bluetooth, or audio jack, the headphones work well. Using Windows 10 and USB, the headphones work well.

I d'like too use them with USB on Ubuntu because that recharge them in parallel.

Problems while the headphons are connected : On Chrome : The videos are played too fast and there's no sound (Youtube & Twitch). On Firefox : The videos are played too fast and there's a crackling sound (Youtube & Twitch). On VLC : No sound

I've tried with Ubuntu 20.04 & 18.04. They are set as default audio device I've played with PulseAudio and alsamixer (reinstall, mute/unmute, ...) The headphones are set as fallback in PulseAudio.

Trying to find the issue, i've make some test found on Google : I've added pcie_aspm=off in GRUB_CMDLINE_LINUX_DEFAULT Setting devices as default in /etc/asound.conf

--- The ALSA part

I think the problem come from ALSA, i've found the errors : Failed to load module "module-alsa-card followed few lines later by Most likely this is a bug in the ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA developers.

Output of journalctl --user -u pulseaudio is here Output of pulseaudio -vvvvv is here Output of pacmd ls is here

Please, tell me if you need something more to analyse the problem.

rombru commented 3 years ago

Here is alsa-info, maybe it can help more. Output of alsa-info is here

perexg commented 3 years ago

Dup of #90.