No sound with 2 or more java applications at the same time

[LuisJa1006]

I cant get sound in 2 and more java programs at once using youtube videos, runescape.com (game) and frostwire (preview or library reproduce). I only got sound in 1 of them, example: if i use youtube, the other are without sound, if i play runescape, i dont get sound in youtube or frost, and viceversa when using frostwire. The real annoying thing is than if I am playing runescape, i cant let a youtube video charging because it will have no sound, and I have to restart the firefox to get sound in youtube, losing the video charged data. For the frostwire and any other java app than uses sound, I have to quit the program, quit the firefox, and then open the program again.

ProblemType: Bug
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/dsp: luis 5464 F.... java
 /dev/snd/controlC0: luis 4965 F.... kmix
                      luis 4971 F.... amarok
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xf4480000 irq 18'
   Mixer name : 'Realtek ALC268'
   Components : 'HDA:10ec0268,10250127,00100003 HDA:11c11040,10250127,00100200'
   Controls : 22
   Simple ctrls : 13
DistroRelease: Ubuntu 9.04
NonfreeKernelModules: nvidia
Package: alsa-base 1.0.18.dfsg-1ubuntu8
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=es_PA:es
 LANG=es_PA.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Uname: Linux 2.6.28-14-generic i686

[komputes (komputes)]

Confirmed. Tested Frostwire and Youtube, on kubuntu 9.04 32-bit. Only one outputs sound at a time.

[komputes (komputes)]

Just installed ubuntu-desktop, so I can also confirmed this happens in KDE and GNOME.

[Daniel T Chen (crimsun)]

On Tue, Aug 18, 2009 at 5:48 PM, komputes<email address hidden> wrote:
> Just installed ubuntu-desktop, so I can also confirmed this happens in
> KDE and GNOME.

See:

AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/dsp: luis 5464 F.... java

In other words, the java plugin uses oss emulation exclusively, and
your sound hardware does not support native multiopen.

In the queue for karmic+1 is osspd, so cuse will be used to route
/dev/dsp to pulse.

[LuisJa1006 (luigi-jh10)]

Daniel T Chen, in windows i could do multiaudio (also with various java programs), i cant find a reason why in kubuntu not.

[Daniel T Chen (crimsun)]

On Tue, Aug 18, 2009 at 6:23 PM, LuisJa1006<email address hidden> wrote:
> Daniel T Chen, in windows i could do multiaudio (also with various java
> programs), i cant find a reason why in kubuntu not.

As explained on IRC, it requires hardware support in Linux
(specifically "it" refers to muxing /dev/dsp and alsa concurrent
playback using pcm multiopen).

[Vlad Novak (vnovak06)]

It affects me also, Ubuntu Karmic. I too am playing Runescape and I can't get sound from both Java and SMPlayer/Exaile/Flash. If I run Runescape first, I have sound in Runescape, but not in my video players, audio players, Flash-animations and sites like YouTube and vice versa: if any of the previous is running before I start Runescape, I have no sound in Runescape.

I had this problem in Ubuntu 9.04 also. Previously to 9.04, I have been using Kubuntu 8.04 and there everything worked just fine, no sound issues whatsoever.

At the moment, I am googling for the answer how to enable sound in Java in the same time with other apps. No solutions found so far or similar complaints, only this page.

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for alsa-driver (Ubuntu) because there has been no activity for 60 days.]