Re: [LAU] Fedora 12 & CCRMA

On Sun, 16 May 2010, Fernando Lopez-Lezcano wrote:

> On Sun, 2010-05-16 at 23:59 -0400, Rick Green wrote:
>> On Sun, 16 May 2010, Fernando Lopez-Lezcano wrote:
>>
>>> For starters tell us which soundcard you have, that could help
>>> ("cat /proc/asound/cards").
>>>
>> [rtg@email-addr-hidden ~]$ cat /proc/asound/cards
>> 0 [SI7012 ]: ICH - SiS SI7012
>> SiS SI7012 with ALC655 at irq 18
>
> Thanks. I don't think I have worked with this one before.
>
   After comments by Neils and Jeremy, I went rummaging thru the drawers,
and found an old soundblaster, So I disabled the onboard audio, and
plugged in the soundblaster:

[rtg@email-addr-hidden ~]$ cat /proc/asound/cards
  0 [Live ]: EMU10K1 - SB Live! Value [CT4831]
                       SB Live! Value [CT4831] (rev.7, serial:0x80311102)
at 0xbc00, irq 18
[rtg@email-addr-hidden ~]$ jackd -d alsa -d hw:0
jackdmp 1.9.4
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2009 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 60
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
Using ALSA driver EMU10K1 running on card 0 - SB Live! Value [CT4831]
(rev.7, serial:0x80311102) at 0xbc00, irq 18
configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2
periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 2 periods for playback

...I then opened another console, and checked dmesg and /var/log/messages.

dmesg had no apparent references to audio, but I found this at the end of
/var/log/messages:

May 17 09:34:36 angel rtkit-daemon[1652]: Sucessfully made thread 1650 of
process 1650 (/usr/bin/pulseaudio) owned by '42' high priority at nice
level -11.
May 17 09:34:36 angel rtkit-daemon[1652]: Sucessfully made thread 1655 of
process 1650 (/usr/bin/pulseaudio) owned by '42' RT at priority 5.
May 17 09:34:36 angel rtkit-daemon[1652]: Sucessfully made thread 1657 of
process 1650 (/usr/bin/pulseaudio) owned by '42' RT at priority 5.
May 17 09:34:47 angel kernel: fuse init (API version 7.12)
May 17 09:34:47 angel rtkit-daemon[1652]: Sucessfully made thread 1780 of
process 1780 (/usr/bin/pulseaudio) owned by '500' high priority at nice
level -11.
May 17 09:34:51 angel rtkit-daemon[1652]: Sucessfully made thread 1834 of
process 1834 (/usr/bin/pulseaudio) owned by '500' high priority at nice
level -11.
May 17 09:34:51 angel pulseaudio[1834]: pid.c: Daemon already running.
May 17 09:38:22 angel ntpd[1296]: synchronized to 192.168.156.1, stratum
11
May 17 09:38:22 angel ntpd[1296]: kernel time sync status change 2001
May 17 09:53:28 angel pulseaudio[1780]: sink-input.c: Failed to create
sink input: sink is suspended.
May 17 09:53:28 angel pulseaudio[1780]: sink-input.c: Failed to create
sink input: sink is suspended.
May 17 09:53:28 angel pulseaudio[1780]: sink-input.c: Failed to create
sink input: sink is suspended.
May 17 09:53:32 angel pulseaudio[1780]: sink-input.c: Failed to create
sink input: sink is suspended.

...while jackd is running, desktop audio seems to be suspended. At least
I get no output when I sample the various sounds in
System/preferences/sounds.

...I stop jackd with ^C, it stops cleanly, and desktop audio is
re-enabled!

...I start Ardour, and select my 'test' session. When I click 'open', it
gives me a message about 'I must select a device first'. I poked around
the various tabs, and under 'device' and 'advanced', I found input and
output options that were blank. It offered me choices of 'standard PCM'
or 'Multichannel'. I selected the 'Standard PCM' for both input and
output, and then Ardour was willing to open the session.

...cross my fingers, and click on 'play'. The playhead moves, I see
signal in the level meters, but no sound. I notice that the output
selector on the master bus is '-', so I click on it and select 'out 1-2'.
A good sign, '1/2' is displayed on the output selector. Press Play
again...

  Success! It actually gives me sound.

  Save the session, close Ardour, and check with ps. Jackd isn't there!
Check desktop sounds - they're enabled again. So far, so good.

Next steps: Hook up the firewire interface and see if it behaves with
ffado...

-- 
Rick Green
"Those who would give up essential Liberty, to purchase a little 
temporary Safety, deserve neither Liberty nor Safety."
                                   -Benjamin Franklin
"As for our common defense, we reject as false the choice between our 
safety and our ideals."
                                -President Barack Obama 20 Jan 2009
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