Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I occasionally switch audio output from the ubuntu default pulse-audio to jack. this has created several problems that I haven't managed to fix in the past (no sound from firefox ever again, then switched to chromium which was fine), but now I am using google-chrome and whenever I switch on jack, I get no sound from the application. mind you, audio works fine from , say jukebox.

The steps I take to switch on jack are the following:

- run qjackctl
- start the audio server. 

Note: usually the PA tp jack source and sink modules haven't been started (why, oh why?) so I fire up a console and type in :

pactl load-module module-jack-sink channels=2; pactl load-module module-jack-source channels=2; pactl set-default-sink jack_out; pactl set-default-source jack_in

there, now jackd is up and running.

Now, I fire google-chrome from command line, and see the following when I visit a page in youtube to see a video:

[22624:22645:1119/161906:ERROR:audio_manager_base.cc(422)] Not implemented reached in virtual std::string media::AudioManagerBase::GetDefaultOutputDeviceID()

Argh! any ideas?

share|improve this question
    
I fought with a similar problem using ALSA. For that, it was a question of creating a "default" alsa device (pcm.!default). Perhaps something similar with an alsa loopback device would work (see: remastersys.com/forums/index.php?topic=2800.0). – jwernerny Dec 13 '13 at 16:28

I had/have the same problems.

At the moment I have a workaround for it.

  • stop jack
  • start the player (youtube, webradio...)
  • start jack
  • in pavucontrol you can adjust the output of the app to the Jack Sink.

tried many possibilities. even the Cadence (from kxstudio) - "solution" didn't bring the suggested results...

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.