On 2011-05-20 02:28, Scott Lavender wrote:
On Tue, May 17, 2011 at 12:59 AM, David Henningsson
<[email protected]
<mailto:[email protected]>> wrote:
Hmm, is that script still present? AFAIK it was removed in Maverick,
when PA and Jack implemented the device reservation protocol.
If I just run "qjackctl" from a terminal here, it does not suspend
PulseAudio.
Interesting. I tested this, but this time with a YouTube video playing
in Firefox, with two methods.
In the first test, I started video in YouTube then select qjackctl from
the menu. I have only started qjackctl, not jack, and video losses
sound but starts again when qjackctl is shut down.
Next, I start jackd via command line " jackd -dalsa -dhw:1 -r44100 -p512
-n3" and the jackd will not start because "the playback device "hw:1" is
already in use".
Note that you're recommended to use card names instead of indices, e g
"hw:Juli" instead of "hw:1". You can see the card names in
/proc/asound/cards - it's the names within square brackets.
This is because the indices often change between reboots.
Keep in mind that I'm running Ubuntu Studio and the menu entry is
calling "pasuspender /usr/bin/qjackctl" so this isn't really a script.
The Ubuntu Studio team will need to address this once we sort out
getting how jack and Pulse Audio and working together.
That seems like a bug to me, please start qjackctl without pasuspender.
Are you talking about /usr/share/applications/qjackctl.desktop? I can
verify the problem is present there. Seems like this was added for Natty
as a response to bug #570379.
Btw, could you also make sure that the pulseaudio-module-jack package is
installed? We should also probably make sure it's seeded in Ubuntu
Studio if it isn't. If it isn't, that could explain why you're not
seeing much of the functionality.
For the automatic stuff you want to make sure that Setup -> Misc ->
"Enable D-Bus interface" is checked as well.
I did that last night before the tests tonight and even verified that
it was still enabled.
We should probably patch qjackctl to make that the default for Oneiric.
...and start "jackdbus" instead of "jackd" here.
I tried and it said that "jackdbus should be auto-executed by D-Bus
message bus daemon.
If you want to run it manually anyway, specify "auto" as only parameter"
Trying "jackdbus auto" doesn't seem to do anything. No comments back,
just "scott@natty-studio:~$" at the next line waiting for a command.
Right. It is set to spawn when the first client calls instead, forgot
that, sorry. (However this should be the case if pulseaudio actually
connects to jack.)
Hmm, under this scenario, could you supply the output of "sudo fuser
-v /dev/snd/*"? It sounds like totem does not use pulseaudio but
goes to the sound card through some other path.
scott@natty-studio:~$ sudo fuser -v /dev/snd/*
[sudo] password for scott:
USER PID ACCESS COMMAND
/dev/snd/controlC0: scott 1489 F.... pulseaudio
/dev/snd/controlC1: scott 1489 F.... pulseaudio
/dev/snd/pcmC1D0p: scott 1489 F...m pulseaudio
I have tried the same thing here and it seems to be a timeout
problem...? If I click Start (in qjackctl, without pasuspender) once, I
get the "busy" error, if I try it again it works. It might be that some
layer does not make sure the device is closed before reporting that it is.
Could you also check
1) the "Connect" window in qjackctl and see if there are PulseAudio
sources and sinks there?
2) in the "pavucontrol" application, check that "Totem" is set to
output to the Jack sink?
Maybe they just need to be connected manually?
I never saw any Pulse Audio sinks in the qjackctl "Connect" window under
any of the tabs.
I did not see a place to set the output to a jack sink in
"pavucontrol". Under the "Playback" tab I can see Totem playing the
music but I can only choose to set it to either of my audio interfaces:
Internal Audio Analog or ICE1712 [Envy24] PCI
I should point out that I haven't loaded either of your modules yet.
However, I am running Ubuntu Studio Natty with jackd2 installed.
Lastly I want to point out that I appreciate your time and effort to
helping me understand this so I can provide better functionality for our
users.
Thanks. I wish I had more time for helping you folks out.
--
David Henningsson, Canonical Ltd.
http://launchpad.net/~diwic
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