sound problem ibook g4
m laks
Some time ago (way before squeeze) sound stopped working at all.
instead I get a scratchy terrible sound that sounds like someone blowing air under their tongue while scratching their fingernails on glass, whenever I try to listen to a ogg or mp3 lecture or music.
When I downloaded a ubuntu live disk 10.04 sound works fine. So it is not a hardware problem.
I had the problem for some before squeeze time and was running squeeze with this problem too. I tried some random things i googled - such as putting snd-powermac in the /etc/modules directory as well as putting
the following modules to be blacklisted:
snd-aoa
snd-aoa-codec-tas
snd-aoa-fabric-layout
snd-aoa-i2sbus
snd-aoa-soundbus
-
this had no effect. still the same bad sound.
I upgraded to the latest sid kernel 2.6.38-2
from the squeeze kernel and
no help. I also tried installing the latest alsa-driver from the alsa web site and this did not help?
Is there anything that I can do to get this very portable nice laptop sound working? It worked fine for the longest time...
here is lsmod|grep snd
snd_powermac 58851 0
snd_pcm_oss 44965 0
snd_mixer_oss 19254 1 snd_pcm_oss
snd_pcm 68590 2 snd_powermac,snd_pcm_oss
snd_seq_dummy 4759 0
snd_seq_oss 33902 0
snd_seq_midi 8352 0
snd_rawmidi 22252 1 snd_seq_midi
snd_seq_midi_event 7904 2 snd_seq_oss,snd_seq_midi
snd_seq 53422 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 21631 2 snd_pcm,snd_seq
snd_seq_device 8861 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 55632 11 snd_powermac,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 8067 1 snd
snd_page_alloc 9121 1 snd_pcm
Thanks!
Mitchell Kaks
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m laks
that gave me no sound with an error from Alsa when I tried to run mpg321 etc
however when i then did modprobe snd-powermac
i got the terrible scratching sound and no music or voice as before.
Thus it appears that the snd-powermac module is doing the badness.
How can I restore it to sweetness?
Thanks
Mitchell Laks
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m laks
cat /proc/asound/cards
0[Snapper ]: PMac Snapper - Poewrmac Snapper
PowerMac Snapper Dev 38 Sub-frame 0
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Risto Suominen
I have an almost identical machine: 1.07 Ghz model iBook G4 (early
2004). So I did two simple tests:
First I changed input to Mic in alsamixer, then recoded some sound:
arecord -f cd t.wav
and played it back:
aplay t.wav
Second I played this file:
http://ristosu.wippiespace.com/pub/tecbeat.au
with:
cat tecbeat.au > /dev/audio
Both tests worked well. Can you try these, too?
Risto
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Elimar Riesebieter
> Hi I have been using debian squeeze and now sid on a ibookg g4
> 1.2Ghz which i believe is a late 2004 machine - 30G harddrive.
>
> Some time ago (way before squeeze) sound stopped working at all.
>
> instead I get a scratchy terrible sound that sounds like someone
> blowing air under their tongue while scratching their fingernails
> on glass, whenever I try to listen to a ogg or mp3 lecture or
> music.
>
> When I downloaded a ubuntu live disk 10.04 sound works fine. So
> it is not a hardware problem.
A good way of debugging would be to list the snd modules Ubuntu
distro is using. I guess snd-aoa-codec-tas should be correct for
your machine. Could you please send the output of
$ lsmod | grep snd
from your Ubuntu distro?
>
> I had the problem for some before squeeze time and was running
> squeeze with this problem too. I tried some random things i
> googled - such as putting snd-powermac in the /etc/modules
> directory as well as putting
>
Don't put any snd module in /etc/modules and let udev do the job.
> the following modules to be blacklisted:
>
> snd-aoa
> snd-aoa-codec-tas
> snd-aoa-fabric-layout
> snd-aoa-i2sbus
> snd-aoa-soundbus
Don't do that.
> -
> this had no effect. still the same bad sound.
>
> I upgraded to the latest sid kernel 2.6.38-2 from the squeeze
> kernel and no help. I also tried installing the latest alsa-driver
> from the alsa web site and this did not help?
>
> Is there anything that I can do to get this very portable nice
> laptop sound working? It worked fine for the longest time...
Do what I've mentioned above, reboot and post the following outputs
as user:
$ lsmod | grep snd
$ cat /proc/asound/cards
$ cat /proc/asound/version
$ dpkg -l | egrep "(alsa-|asound)"
$ aplay -lL
$ groups
Elimar
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m laks
Elimar her is the output you wanted from the ubuntu install
here is the output when i play and boot into a ubuntu cd.
(i like debian and have it already installed and dont want to reinstall debian or move to ubuntu...)
note that i can play the audio file from risto
ubuntu@ubuntu:~$ lsmod |grep snd
snd_powermac 68187 2
snd_pcm_oss 47872 0
snd_mixer_oss 19382 1 snd_pcm_oss
snd_aoa_i2sbus 20791 0
snd_pcm 87095 3 snd_powermac,snd_pcm_oss,snd_aoa_i2sbus
snd_seq_dummy 1766 0
snd_seq_oss 36232 0
snd_seq_midi 6161 0
snd_rawmidi 24746 1 snd_seq_midi
snd_seq_midi_event 7367 2 snd_seq_oss,snd_seq_midi
snd_seq 61897 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 24515 2 snd_pcm,snd_seq
snd_seq_device 7524 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 70628 14 snd_powermac,snd_pcm_oss,snd_mixer_oss,snd_aoa_i2sbus,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
snd_aoa_soundbus 4916 1 snd_aoa_i2sbus
soundcore 7534 1 snd
snd_page_alloc 7660 1 snd_pcm
ubuntu@ubuntu:~$ cat /proc/asound/cards
0 [Snapper ]: PMac Snapper - PowerMac Snapper
PowerMac Snapper (Dev 38) Sub-frame 0
ubuntu@ubuntu:~$ cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.21.
ubuntu@ubuntu:~$ dpkg -l|egrep "(alsa-|asound)"
ii alsa-base 1.0.22.1+dfsg-0ubuntu3 ALSA driver configuration files
ii alsa-utils 1.0.22-0ubuntu5 ALSA utilities
ii libasound2 1.0.22-0ubuntu7 shared library for ALSA applications
ii libasound2-plugins 1.0.22-0ubuntu6 ALSA library additional plugins
ubuntu@ubuntu:~$ aplay -lL
pulse
Playback/recording through the PulseAudio sound server
front:CARD=Snapper,DEV=0
PowerMac Snapper, PowerMac Snapper
Front speakers
**** List of PLAYBACK Hardware Devices ****
card 0: Snapper [PowerMac Snapper], device 0: PMac Snapper [PowerMac Snapper]
Subdevices: 1/1
Subdevice #0: subdevice #0
ubuntu@ubuntu:~$ groups
ubuntu adm dialout cdrom plugdev lpadmin admin sambashare
ubuntu@ubuntu:~$
--- On Thu, 4/28/11, Risto Suominen <risto.s...@gmail.com> wrote:
Archive: http://lists.debian.org/949273....@web33405.mail.mud.yahoo.com
m laks
mlaks@B1:~$ uname -a
Linux B1 2.6.38-2-powerpc #1 Sat Apr 23 19:45:44 UTC 2011 ppc GNU/Linux
here is the output on the laptop when booted into debian
mlaks@B1:~$ lsmod |grep snd
snd_aoa_i2sbus 20887 0
snd_powermac 58851 0
snd_pcm_oss 44965 0
snd_mixer_oss 19254 1 snd_pcm_oss
snd_pcm 68590 3 snd_aoa_i2sbus,snd_powermac,snd_pcm_oss
snd_page_alloc 9121 1 snd_pcm
snd_seq_dummy 4759 0
snd_seq_oss 33902 0
snd_seq_midi 8352 0
snd_rawmidi 22252 1 snd_seq_midi
snd_seq_midi_event 7904 2 snd_seq_oss,snd_seq_midi
snd_seq 53422 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 21631 2 snd_pcm,snd_seq
snd_seq_device 8861 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 55632 12 snd_aoa_i2sbus,snd_powermac,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 8067 1 snd
snd_aoa_soundbus 6701 1 snd_aoa_i2sbus
mlaks@B1:~$ cat /proc/asound/cards
0 [Snapper ]: PMac Snapper - PowerMac Snapper
PowerMac Snapper (Dev 38) Sub-frame 0
mlaks@B1:~$ cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.24.12.ge9da1.286.ge539e.
Compiled on Apr 24 2011 for kernel 2.6.38-2-powerpc.
mlaks@B1:~$ dpkg -l|egrep "(alsa-|asound)"
ii alsa-base 1.0.23+dfsg-3 ALSA driver configuration files
ii alsa-firmware-loaders 1.0.23-3+b1 ALSA software loaders for specific hardware
ii alsa-source 1.0.23+dfsg-3 ALSA driver sources
ii alsa-utils 1.0.23-3 Utilities for configuring and using ALSA
ii libasound2 1.0.23-2.1 shared library for ALSA applications
ii libasound2-plugins 1.0.23-1+b1 ALSA library additional plugins
mlaks@B1:~$ aplay -lL
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=Snapper
PowerMac Snapper, PowerMac Snapper
Default Audio Device
front:CARD=Snapper,DEV=0
PowerMac Snapper, PowerMac Snapper
Front speakers
**** List of PLAYBACK Hardware Devices ****
card 0: Snapper [PowerMac Snapper], device 0: PMac Snapper [PowerMac Snapper]
Subdevices: 1/1
Subdevice #0: subdevice #0
mlaks@B1:~$ groups
mlaks dialout cdrom floppy audio video plugdev netdev
--- On Thu, 4/28/11, Elimar Riesebieter <ries...@lxtec.de> wrote:
> From: Elimar Riesebieter <ries...@lxtec.de>
> Subject: Re: sound problem ibook g4
Archive: http://lists.debian.org/878233....@web33402.mail.mud.yahoo.com
Elimar Riesebieter
>
> mlaks@B1:~$ uname -a
> Linux B1 2.6.38-2-powerpc #1 Sat Apr 23 19:45:44 UTC 2011 ppc GNU/Linux
>
> here is the output on the laptop when booted into debian
>
> mlaks@B1:~$ lsmod |grep snd
> snd_aoa_i2sbus 20887 0
> snd_powermac 58851 0
> snd_pcm_oss 44965 0
> snd_mixer_oss 19254 1 snd_pcm_oss
> snd_pcm 68590 3 snd_aoa_i2sbus,snd_powermac,snd_pcm_oss
> snd_page_alloc 9121 1 snd_pcm
> snd_seq_dummy 4759 0
> snd_seq_oss 33902 0
> snd_seq_midi 8352 0
> snd_rawmidi 22252 1 snd_seq_midi
> snd_seq_midi_event 7904 2 snd_seq_oss,snd_seq_midi
> snd_seq 53422 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
> snd_timer 21631 2 snd_pcm,snd_seq
> snd_seq_device 8861 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
> snd 55632 12 snd_aoa_i2sbus,snd_powermac,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
> soundcore 8067 1 snd
> snd_aoa_soundbus 6701 1 snd_aoa_i2sbus
This is contradictory. A mix of snd-poermac and snd-aoa. Try
# rmmod snd-powerma
# modprobe -v snd-aoa
# modprobe snd-aoa-codec-tas
lsmod | grep snd which sholuld look similar to:
snd_aoa_codec_tas 13216 2
snd_aoa_fabric_layout 12392 0
snd_aoa 17472 2 snd_aoa_codec_tas,snd_aoa_fabric_layout
snd_aoa_i2sbus 21540 1
snd_pcm_oss 47968 0
snd_mixer_oss 19008 1 snd_pcm_oss
snd_pcm 85508 2 snd_aoa_i2sbus,snd_pcm_oss
snd_timer 22564 1 snd_pcm
snd_page_alloc 9352 1 snd_pcm
snd 62036 8
+snd_aoa_codec_tas,snd_aoa_fabric_layout,snd_aoa,snd_aoa_i2sbus,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore 6948 1 snd
snd_aoa_soundbus 6148 2 snd_aoa_fabric_layout,snd_aoa_i2sbus
> mlaks@B1:~$ cat /proc/asound/cards
> 0 [Snapper ]: PMac Snapper - PowerMac Snapper
> PowerMac Snapper (Dev 38) Sub-frame 0
snd_powermac is used for AWACS, DACA, Burgundi, Tumbler, Keywest. Do
you have instructions to load snd-powermac in /etc/modules or
/etc/modprobe.d?
A look into the alsa sources gives me:
snd-powermac is used to run on:
AWACS, DACA, Burgundy, Tumbler, Keywest
snd_aoa_codec_onyx is used to run on:
latest (last) generation of Apple PPC
snd_aoa_codec_tas is uded to run on:
iBooks and PowerBooks without digital
snd_aoa_codec_toonie is used to run on:
Mac Mini
> mlaks@B1:~$ cat /proc/asound/version
> Advanced Linux Sound Architecture Driver Version 1.0.24.12.ge9da1.286.ge539e.
Uuups. This doesn't look like a Debian version. AFAIK 2.6.38
provides 1.0.23? Did you compiled the drivers by youself?
Elimar
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m laks
So recently, after installing the latest kernel from sid and seeing no benefit, I thought based upon web posting of other people that the problem was the older released alsa drivers. So I went directly to the alsa web site and installed the latest alsa-drivers. It has had no effect. same sound output on the installed debian. Thus I don't think that we can attribute the problem to the new alsa drivers which are newer than the sid alsa version.
I did what you said to do. rmmod the snd-powermac and did the install of the kernel you asked for. Now I get the following:
snd_aoa_codec_tas 13459 0
snd_aoa 15648 1 snd_aoa_codec_tas
snd_aoa_i2sbus 20887 0
snd_pcm_oss 44965 0
snd_mixer_oss 19254 1 snd_pcm_oss
snd_pcm 68590 2 snd_aoa_i2sbus,snd_pcm_oss
snd_page_alloc 9121 1 snd_pcm
snd_seq_dummy 4759 0
snd_seq_oss 33902 0
snd_seq_midi 8352 0
snd_rawmidi 22252 1 snd_seq_midi
snd_seq_midi_event 7904 2 snd_seq_oss,snd_seq_midi
snd_seq 53422 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 21631 2 snd_pcm,snd_seq
snd_seq_device 8861 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 55632 13 snd_aoa_codec_tas,snd_aoa,snd_aoa_i2sbus,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 8067 1 snd
snd_aoa_soundbus 6701 1 snd_aoa_i2sbus
however now when i try to play an mp3 file:
mlaks@B1:~$ mpg321 my-singing.mp3
High Performance MPEG 1.0/2.0/2.5 Audio Player for Layer 1, 2, and 3.
Version 0.2.12-1 (2010/07/01). Written and copyrights by Joe Drew,
now maintained by Nanakos Chrysostomos and others.
Uses code from various people. See 'README' for more!
THIS SOFTWARE COMES WITH ABSOLUTELY NO WARRANTY! USE AT YOUR OWN RISK!
Title : mysinging Artist : me
Album : stuff Year : 1994
Comment : This and thousands more Genre :
Playing MPEG stream from my-singing.mp3 ...
MPEG 2.0 layer III, 64 kbit/s, 22050 Hz mono
ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
ALSA lib conf.c:4170:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4170:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:4170:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4649:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2190:(snd_pcm_open_noupdate) Unknown PCM default
Can't find a suitable libao driver. (Is device in use?)
--- On Fri, 4/29/11, Elimar Riesebieter <ries...@lxtec.de> wrote:
> From: Elimar Riesebieter <ries...@lxtec.de>
> Subject: Re: sound problem ibook g4
> To: debian-...@lists.debian.org
Archive: http://lists.debian.org/79928.5...@web33403.mail.mud.yahoo.com
Elimar Riesebieter
Looks reasonable
>
> however now when i try to play an mp3 file:
> mlaks@B1:~$ mpg321 my-singing.mp3
> High Performance MPEG 1.0/2.0/2.5 Audio Player for Layer 1, 2, and 3.
> Version 0.2.12-1 (2010/07/01). Written and copyrights by Joe Drew,
> now maintained by Nanakos Chrysostomos and others.
> Uses code from various people. See 'README' for more!
> THIS SOFTWARE COMES WITH ABSOLUTELY NO WARRANTY! USE AT YOUR OWN RISK!
> Title : mysinging Artist : me
> Album : stuff Year : 1994
> Comment : This and thousands more Genre :
>
> Playing MPEG stream from my-singing.mp3 ...
> MPEG 2.0 layer III, 64 kbit/s, 22050 Hz mono
> ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
What tells
$ cat /proc/asound/cards
> ALSA lib conf.c:4170:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
> ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
> ALSA lib conf.c:4170:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
> ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
> ALSA lib conf.c:4170:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
> ALSA lib conf.c:4649:(snd_config_expand) Evaluate error: No such file or directory
> ALSA lib pcm.c:2190:(snd_pcm_open_noupdate) Unknown PCM default
> Can't find a suitable libao driver. (Is device in use?)
Is libao installed?
$ dpkg -l |grep libao
Is oss-compat installed?
$ dpkg -l |grep oss-compat
Can you hear sound by playing a mp3 via mplayer or others?
Elimar
--
The path to source is always uphill!
-unknown-
m laks
> What tells
> $ cat /proc/asound/cards
output
no soundcard now.
recall there was one before i removed the snd=powermac module at your suggestion.
>
> Is libao installed?
yes
>
> $ dpkg -l |grep libao
yes it is there
>
> Is oss-compat installed?
>
> $ dpkg -l |grep oss-compat
yes it is there
(i had the output but you will see why i cant display it at this time :))
>
> Can you hear sound by playing a mp3 via mplayer or others?
no i cannot.
in fact even
cat techsound.au > /dev/audio
gives no sound.
before it gave the scratchy sound.
now when i did modprobe snd-powermac to see if i can hear the scratchy sound again, the machine froze, preventing me from saving the output of the lists of packages installed.
rest assured the standard packages are installed for squeeze. this is a kernel problem not a problem with not having userland packages installed for particular audio codecs :)
Mitchell
>
> Elimar
>
> --
> The path to source is always uphill!
>
>
> -unknown-
>
>
>
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Risto Suominen
too). I assume yours is a PowerBook6,5, too?
Looks like snd-aoa is not even trying to support this machine, snd-powermac is.
And Ubuntu 10.04 uses the same version of kernel, 2.6.32. But it is
running pulseaudio on top on snd-powermac.
Is it possible that the problem is caused by some old volume control
data? Is it a fresh install?
Have you tried to adjust the controls in alsamixer? Take off
everything else, and add just some Master volume and PCM.
Risto
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m laks
it is an ibook g4 from 2004 perhaps late.
it is not a powermac.
its not a volume issue. i hear fine just strange sounds. alsamixer set to 99 or lower for master and stuff for pcm . why would treble and bass have any effect?
in a week when i get back from a conference if neccessary I will trash the install and reinstall and try again.
(i have never had to reinstall debian every before on 10's of machines!!!) this is a very sad occurence!!! i have never had this idea of reinstalling - so windows like. :(
Mitchell
> Looks like snd-aoa is not even trying to support this
> machine, snd-powermac is.
>
> And Ubuntu 10.04 uses the same version of kernel, 2.6.32.
> But it is
> running pulseaudio on top on snd-powermac.
>
> Is it possible that the problem is caused by some old
> volume control
> data? Is it a fresh install?
>
> Have you tried to adjust the controls in alsamixer? Take
> off
> everything else, and add just some Master volume and PCM.
>
> Risto
>
>
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Risto Suominen
>
> it is an ibook g4 from 2004 perhaps late.
>
> it is not a powermac.
>
http://www.everymac.com/systems/by_capability/mac-specs-by-machine-model-machine-id.html
.Try: cat /proc/device-tree/model
> its not a volume issue. i hear fine just strange sounds. alsamixer set to 99
> or lower for master and stuff for pcm . why would treble and bass have any
> effect?
>
A bug in the driver, one might say.
> in a week when i get back from a conference if neccessary I will trash the
> install and reinstall and try again.
>
> (i have never had to reinstall debian every before on 10's of machines!!!)
> this is a very sad occurence!!! i have never had this idea of reinstalling -
> so windows like. :(
>
Maybe you are over-reacting. If we can find out what makes the
difference between your and my installation...
To run exactly the same driver:
1) install stock kernel for squeeze: linux-image-2.6.32-5-powerpc (2.6.32-31)
2) install my driver package:
http://ristosu.wippiespace.com/pub/alsa-modules-2.6.32-5-powerpc_1.0.23+dfsg-2+2.6.32-31_powerpc.deb
To 'refresh' your alsa driver, you could try to remove (or rename)
/var/lib/alsa/asound.state.
Risto
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Elimar Riesebieter
>
> it is an ibook g4 from 2004 perhaps late.
What tells.
$ cat /proc/cpuinfo
And from where did you get the drivers version 1.0.24?
Elimar
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m laks
--- On Fri, 4/29/11, Risto Suominen <risto.s...@gmail.com> wrote:
> From: Risto Suominen <risto.s...@gmail.com>
> Subject: Re: sound problem ibook g4
Archive: http://lists.debian.org/259867....@web33406.mail.mud.yahoo.com
m laks
> What tells.
> $ cat /proc/cpuinfo
cat /proc/cpuinfo
processor : 0
cpu : 7447A, altivec supported
clock : 599.999000MHz
revision : 1.1 (pvr 8003 0101)
bogomips : 36.86
timebase : 18432000
platform : PowerMac
model : PowerBook6,5
machine : PowerBook6,5
motherboard : PowerBook6,5 MacRISC3 Power Macintosh
detected as : 287 (iBook G4)
pmac flags : 0000001b
L2 cache : 512K unified
pmac-generation : NewWorld
Memory : 1280 MB
>
> And from where did you get the drivers version 1.0.24?
http://www.alsa-project.org/main/index.php/Main_Page
but recall that the behavior pre-existed the alsa drivers installed
via download make and make install.
i was hoping that my problems corresponded to problems others reported with the alsa drivers on ppc so that installing the latest drivers, done on tuesday or wednesday last, was supposed to fix, but did not change the sysystem behavior at all... same weird sound no music :(
>
> Elimar
>
> --
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> the government we pay for.
>
>
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m laks
> To run exactly the same driver:
> 1) install stock kernel for squeeze:
> linux-image-2.6.32-5-powerpc (2.6.32-31)
> 2) install my driver package:
> http://ristosu.wippiespace.com/pub/alsa-modules-2.6.32-5-powerpc_1.0.23+dfsg-2+2.6.32-31_powerpc.deb
>
> To 'refresh' your alsa driver, you could try to remove (or
> rename)
> /var/lib/alsa/asound.state.
>
> Risto
I have installed the stock squeeze kernel
i then rebooted into it and then installed your driver bundle
i then rebooted
then i ran my sound programs and get the error sounds (scratchy sounds)
both from cat tech.au > /dev/audio as well as mpg321 file.mp3
then i run
lsmod |grep snd
snd_aoa_i2sbus 20569 0
snd_powermac 59327 0
snd_pcm_oss 42895 0
snd_mixer_oss 19506 1 snd_pcm_oss
snd_pcm 66254 3 snd_aoa_i2sbus,snd_powermac,snd_pcm_oss
snd_page_alloc 8925 1 snd_pcm
snd_seq_oss 32715 0
snd_seq_midi_event 7956 1 snd_seq_oss
snd_seq 51925 4 snd_seq_oss,snd_seq_midi_event
snd_timer 21072 2 snd_pcm,snd_seq
snd_seq_device 8629 2 snd_seq_oss,snd_seq
snd 52951 9 snd_aoa_i2sbus,snd_powermac,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_seq,snd_timer,snd_seq_device
soundcore 8003 1 snd
snd_aoa_soundbus 6669 1 snd_aoa_i2sbus
mlaks@B1:~$
as well as
cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.23.
Compiled on Apr 17 2011 for kernel 2.6.32-5-powerpc.
mlaks@B1:~$ dpkg -l |grep alsa
ii alsa-base 1.0.23+dfsg-3 ALSA driver configuration files
ii alsa-firmware-loaders 1.0.23-3+b1 ALSA software loaders for specific hardware
ii alsa-modules-2.6.32-5-powerpc 1.0.23+dfsg-2+2.6.32-31 ALSA modules for kernel 2.6.32-5-powerpc
ii alsa-source 1.0.23+dfsg-3 ALSA driver sources
ii alsa-utils 1.0.23-3 Utilities for configuring and using ALSA
ii gstreamer0.10-alsa 0.10.30-1 GStreamer plugin for ALSA
ii libsdl1.2debian-alsa 1.2.14-6.1 Simple DirectMedia Layer (with X11 and ALSA options)
mlaks@B1:~$ aplay -lL
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=Snapper
PowerMac Snapper, PowerMac Snapper
Default Audio Device
front:CARD=Snapper,DEV=0
PowerMac Snapper, PowerMac Snapper
Front speakers
**** List of PLAYBACK Hardware Devices ****
card 0: Snapper [PowerMac Snapper], device 0: PMac Snapper [PowerMac Snapper]
Subdevices: 1/1
Subdevice #0: subdevice #0
any ideas ??? :( :(
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Risto Suominen
Risto
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m laks
> /var/lib/alsa/asound.state?
>
As soon as I got home, I did got rid of the file,
I then ran mpg321 file.mp3 and no change.
Then i rebooted again and then tried again
and still same problem :(
I wish this problem would just fix itself with apt-get :)
Mitchell
By the way, thank you again for all of your attention!
I hope we lick this problem, I dont want to have to reinstall!
Thanks!
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m laks
Any more ideas, or is simply reinstall to get sound?
Thanks for your help,
Mitchell
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Risto Suominen
CPU clock. Is it the same with Ubuntu?
My guess is that this is some kind of byte order problem, low and high
bytes of the 16 bit sample get swapped. Either the chip gets out of
sync, or the code interprets the data wrong.
After having the problem with several kernels, one has to believe that
the problem lies in the user level programs.
Maybe ALSA has some .asoundrc file in your home directory. Try to
remove it, as well.
Maybe you should try to describe your problem to the real ALSA experts
at their mailing list alsa...@lists.sourceforge.net.
Risto
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m laks
>
> After having the problem with several kernels, one has to
> believe that
> the problem lies in the user level programs.
>
> Maybe ALSA has some .asoundrc file in your home directory.
> Try to
> remove it, as well.
I created a new user and then i added him to the audio group and then ran all from the new home directory and still have the same result.
>
> Maybe you should try to describe your problem to the real
> ALSA experts
> at their mailing list alsa...@lists.sourceforge.net.
i will poke around over there. Thanks
Mitchell
>
> Risto
>
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