I'll try to explain:

1) reboot the system
2) play a movie with totem (command line : "totem PublicEnemies.avi"  - the 
sound works, i hear the soundtrack
3) close totem
4) launch qjackctl
5) play a movie with totem (command line : "totem PublicEnemies.avi"  - the 
sound doesn't work, i don't hear the soundtrack -- the volume icon on totem is 
also disabled

Additional info:

ps -ef |grep jack

shark     7672     1  0 15:55 ?        00:00:00 gksudo /usr/bin/qjackctl
root      7673  7672  0 15:55 ?        00:00:00 /bin/sh /usr/bin/qjackctl
root      7681  7673  0 15:55 ?        00:00:01 /usr/bin/qjackctl.bin
root      7689  7681  0 15:55 ?        00:00:00 /usr/bin/jackd -R -m -dalsa 
-dhw:0 -r44100 -p1024 -n2 -Xseq

ps -ef |grep totem

sh...@shark-laptop:~/Desktop$ ps -ef |grep totem
shark     7865     1 12 15:58 ?        00:00:02 totem 
/home/shark/Desktop/Public.Enemies.2009.BRRip.XviD.AC3-DTS-CaLLioPE_MoNTEDiaZ.dp.avi


It seems to me that jack daemon takes exclusive control of alsa sound, but i'm 
not sure.

Let me know  if i can give other details.

Thanks
Stefano



----- Messaggio originale -----
Da: Emmet Hikory <per...@ubuntu.com>
A: stefano.gra...@yahoo.it
Inviato: Ven 12 febbraio 2010, 01:34:29
Oggetto: [Bug 480103] Re: Alsa not working while jackd is running

Could you provide a detailed explanation of precisely which activities
you are engaging in that make and don't make sound?  There are a few
reasons this may happenn, and I'm not sure I understand enough right now
to guess at a fix for the bug.

** Changed in: jack-audio-connection-kit (Ubuntu)
       Status: New => Incomplete

-- 
Alsa not working while jackd is running
https://bugs.launchpad.net/bugs/480103
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of the bug.

Status in “jack-audio-connection-kit” package in Ubuntu: Incomplete

Bug description:
Binary package hint: jackd

Alsa works fine on my laptop, but when I start jack I don't hear any sound. 
Then when I stop jack the sound is working fine.
Hardware : HP DV6-1119el
Ubuntu: release 9.10 32 bit
Soundcard:
description: Audio device
                product: R700 Audio Device [Radeon HD 4000 Series]
                vendor: ATI Technologies Inc
                physical id: 0.1
                bus info: p...@0000:01:00.1
                version: 00
                width: 32 bits
                clock: 33MHz
                capabilities: bus_master cap_list
                configuration: driver=HDA Intel latency=0
                resources: irq:17 memory:da010000-da013fff

Package : alsa_base release 1.0.20+dfgsubuntu5
Package: jackd 0.116.1-4ubuntu2

I don't have further information, I don't know if it is a problem
originated by alsa, oss or jackd.

If I can be helpful to discover the problem let me know.

Thank you 
Stefano

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https://bugs.launchpad.net/bugs/480103
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