I also have a now sound problem with an NVidia card.  Here's where I
am....

1) PulseAudio is disabled.  (Not shown in ps ax, and volume control
reports it cannot connect to the server)

2) Moved KDE settings away from alsa device hw:2.7

3) mplayer will use alsa device hw:2.7 and plays just fine.

4) if I start jackd on alsa hw:2.7 while mplayer is using it, jackd
reports device is in use.

5) If I start jackd without mplayer running, jackd starts just fine and
mplayer then reports the device is in use.

6) jackd creates a system playback sink.

7) Now, with 'mplayer -ao jack x.mp3' jack creates a mplayer source and
maps it to the system sink.

8) No sound.  Alsamixer reports no applications are playing audio.

9) if I run qjackrec, jackd will map the mplayer source to both the
system and qjackreq sinks.  qjackreq captures the audio into a .wav file
just fine, but still no audio output.  After jackd is shutdown, mplayer
will play qjackrec's .wav file (via alsa, again on hw:2.7).

10) All the while jackd is running, including the period mplayer is
playing into jack, alsamixer reports that no applications are playing
sound.

I'm stumped.  Alsa works, the alsa device works, jackd works, jackld
takes ownership of the propoer alsa device... and nothing.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to jackd2 in Ubuntu.
https://bugs.launchpad.net/bugs/1201739

Title:
  no sound

Status in “jackd2” package in Ubuntu:
  New

Bug description:
  no sound

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: jackd2 1.9.9.5+20130127git15950eb1-1
  ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2
  Uname: Linux 3.8.0-26-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.9.2-0ubuntu8.1
  Architecture: i386
  Date: Tue Jul 16 10:12:38 2013
  InstallationDate: Installed on 2013-07-09 (6 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release i386 (20130424)
  MarkForUpload: True
  SourcePackage: jackd2
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/jackd2/+bug/1201739/+subscriptions

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