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jackd with snd-powermac?
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stmiller
Tux's lil' helper
Tux's lil' helper


Joined: 28 Feb 2006
Posts: 119

PostPosted: Wed Apr 19, 2006 5:13 pm    Post subject: jackd with snd-powermac? Reply with quote

Anyone running jack successfully with PPC? I get these errors of jack complaining it can't load the driver.

Code:
stmiller ~ # jackd -dalsa -dhw:0 -r44100 -p64 -n2 -s -S

jackd 0.99.0
Copyright 2001-2003 Paul Davis and others.
jackd 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

loading driver ..
apparent rate = 44100
creating alsa driver ... hw:0|hw:0|64|2|44100|0|0|nomon|swmeter|soft-mode|16bit
control device hw:0
configuring for 44100Hz, period = 64 frames, buffer = 2 periods
ALSA: cannot set number of periods to 2 for capture
ALSA: cannot configure capture channel
cannot load driver module alsa



Is this possibly a big endian/small endian issue that's conflicting with the PPC hardware?

I also tried a USB soundcard I have, Soundblaster MP3+ which worked with jack in other Linux distros. It fails to work with a different error, stating
"Sorry. The audio interface hw:2 doesn"t support any of the sample rates ..."

Please help, thanks.

Code:
stmiller@stmiller ~ $ cat /proc/cpuinfo
processor       : 0
cpu             : PPC970FX, altivec supported
clock           : 2000.000000MHz
revision        : 3.0 (pvr 003c 0300)

processor       : 1
cpu             : PPC970FX, altivec supported
clock           : 2000.000000MHz
revision        : 3.0 (pvr 003c 0300)

timebase        : 33333333
machine         : PowerMac7,3
motherboard     : PowerMac7,3 MacRISC4 Power Macintosh
detected as     : 336 (PowerMac G5)
pmac flags      : 00000000
L2 cache        : 512K unified
pmac-generation : NewWorld
stmiller@stmiller ~ $


----------------------
More info: I notice that if I set the number of periods to 4 instead of 2, jack seems to try to start/hangs, leaving me with:

Code:
stmiller ~ # jackd -dalsa -dhw:0 -r44100 -p64 -n4 -s -S -C
jackd 0.99.0
Copyright 2001-2003 Paul Davis and others.
jackd 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

loading driver ..
apparent rate = 44100
creating alsa driver ... -|hw:0|64|4|44100|0|0|nomon|swmeter|soft-mode|16bit
control device hw:0
configuring for 44100Hz, period = 64 frames, buffer = 4 periods

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nixnut
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Joined: 09 Apr 2004
Posts: 10974
Location: the dutch mountains

PostPosted: Thu Apr 20, 2006 4:49 pm    Post subject: Reply with quote

I've used jackd for a while on my mac mini with jackd -dalsa -P -r44100 -n3
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jp10hp
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Joined: 29 Feb 2004
Posts: 180
Location: Milano

PostPosted: Mon Feb 04, 2008 11:14 am    Post subject: Reply with quote

Code:
 
jackd -dalsa -P -r44100 -n3
jackd 0.103.0
Copyright 2001-2005 Paul Davis and others.
jackd 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

JACK compiled with System V SHM support.
loading driver ..
apparent rate = 44100
creating alsa driver ... hw:0|-|1024|3|44100|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 44100Hz, period = 1024 frames, buffer = 3 periods
Sorry. The audio interface "hw:0" doesn't support any of the hardware sample formats that JACK's alsa-driver can use.
ALSA: cannot configure playback channel
cannot load driver module alsa
no message buffer overruns


:cry: same problem! the only way I've found to use jackd is trought oss API but of course this fashion has much limitations! Nobody can help us?
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JoseJX
Retired Dev
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Joined: 28 Apr 2002
Posts: 2774

PostPosted: Mon Feb 04, 2008 2:05 pm    Post subject: Reply with quote

It's definitely not an endian issue, jackd works fine using the snd-aoa driver. There is a bug open on this, but I don't have a working snd-powermac machine to actually try it out on, all of mine are snd-aoa. :p
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davidgurvich
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Joined: 23 Apr 2004
Posts: 1063

PostPosted: Mon Feb 04, 2008 10:12 pm    Post subject: Reply with quote

I've never gotten jackd to work properly on my G4. The only backend that has allowed jackd to start is pulseaudio. However, I've either not configured pulseaudio properly or it doesn't really work then either.
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jp10hp
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Joined: 29 Feb 2004
Posts: 180
Location: Milano

PostPosted: Tue Feb 05, 2008 11:22 am    Post subject: Reply with quote

JoseJX wrote:
It's definitely not an endian issue, jackd works fine using the snd-aoa driver. There is a bug open on this, but I don't have a working snd-powermac machine to actually try it out on, all of mine are snd-aoa. :p



uhm...with next kernel I'm trying to use snd-aoa driver, it should work on my ibook mid 2005.
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