Date:	Mon, 14 Dec 2009 16:16:27 +0100
From:	Christian Hartmann <cornogle@...glemail.com>
To:	Ray Lee <ray-lk@...rabbit.org>
Cc:	Robert Hancock <hancockrwd@...il.com>,
	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org
Subject: Re: Q: Why I do have to restart alsa everytime after a resume from 
	disk/ram ? Is this alsa- or kernel or config related??

Hy,

I mean I have to

%/etc/init.d/alsa-utils restart

so that I could hear music again. The music is still played after
resume (ogg123, mpg321, xmms etc), but without any sound.
The libpulse0 is the latest unstable package I found, other
pulse-packages are not installed. And pulseaudio is only be used, when
I use skype, but this is rarely used by me.

 here are some hardware infos now at first:


uname -a
Linux oddysseus 2.6.32-rc8a #17 Sat Dec 12 23:54:01 CET 2009 i686 GNU/Linux

 lspci -vvv | grep -A 8 -i Audio
00:1f.5 Multimedia audio controller: Intel Corporation 82801CA/CAM
AC'97 Audio Controller (rev 02)
        Subsystem: IBM ThinkPad T30
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin B routed to IRQ 11
        Region 0: I/O ports at 1c00 [size=256]
        Region 1: I/O ports at 18c0 [size=64]
        Kernel driver in use: Intel ICH

lsmod | grep snd
snd_mixer_oss          11024  0
snd_intel8x0m           8757  0

cat /proc/asound/card
card0/ card1/ cards
oddysseus:/usr/local/lib# cat /proc/asound/cards
 0 [I82801CAICH3   ]: ICH - Intel 82801CA-ICH3
                      Intel 82801CA-ICH3 with AD1881A at irq 11
 1 [Modem          ]: ICH-MODEM - Intel 82801CA-ICH3 Modem
                      Intel 82801CA-ICH3 Modem at irq 11

cat /proc/asound/oss/devices
  0: [0- 0]: mixer
 16: [1- 0]: mixer

cat /proc/asound/oss/sndstat
Sound Driver:3.8.1a-980706 (ALSA v1.0.21 emulation code)
Kernel: Linux oddysseus 2.6.32-rc8a #17 Sat Dec 12 23:54:01 CET 2009 i686
Config options: 0

Installed drivers:
Type 10: ALSA emulation

Card config:
Intel 82801CA-ICH3 with AD1881A at irq 11
Intel 82801CA-ICH3 Modem at irq 11

Audio devices: NOT ENABLED IN CONFIG

Synth devices: NOT ENABLED IN CONFIG

Midi devices: NOT ENABLED IN CONFIG

Timers:
7: system timer

Mixers:
0: Analog Devices AD1881A
1: Silicon Laboratory Si3036,8 rev

 cat /proc/asound/card0/id
I82801CAICH3


cat /proc/asound/card0/intel8x0
Intel8x0
Global control        : 0x00000002
Global status         : 0x00301300

cat /proc/asound/card0/oss_mixer
AC'97 codecs ready    : primary secondary
VOLUME "Master" 0
BASS "" 0
TREBLE "" 0
SYNTH "" 0
PCM "PCM" 0
SPEAKER "Beep" 0
LINE "Line" 0
MIC "Mic" 0
CD "CD" 0
IMIX "" 0
ALTPCM "" 0
RECLEV "" 0
IGAIN "Capture" 0
OGAIN "" 0
LINE1 "Aux" 0
LINE2 "" 0
LINE3 "" 0
DIGITAL1 "" 0
DIGITAL2 "" 0
DIGITAL3 "" 0
PHONEIN "Phone" 0
PHONEOUT "Master Mono" 0
VIDEO "Video" 0
RADIO "" 0
MONITOR "" 0

cat /proc/asound/card0/pcm0c/info
card: 0
device: 0
subdevice: 0
stream: CAPTURE
id: Intel ICH
name: Intel 82801CA-ICH3
subname: subdevice #0
class: 0
subclass: 0
subdevices_count: 1
subdevices_avail: 1

cat /proc/asound/card0/pcm0p/info
card: 0
device: 0
subdevice: 0
stream: PLAYBACK
id: Intel ICH
name: Intel 82801CA-ICH3
subname: subdevice #0
class: 0
subclass: 0
subdevices_count: 1
subdevices_avail: 1

cat /proc/asound/card0/pcm1c/info
card: 0
device: 1
subdevice: 0
stream: CAPTURE
id: Intel ICH - MIC ADC
name: Intel 82801CA-ICH3 - MIC ADC
subname: subdevice #0
class: 0
subclass: 0
subdevices_count: 1
subdevices_avail: 1


cat /proc/asound/card0/codec97#0/ac97#0-0
0-0/0: Analog Devices AD1881A

PCI Subsys Vendor: 0x1014
PCI Subsys Device: 0x0508

Flags: 0
Capabilities     : -headphone out-
DAC resolution   : 16-bit
ADC resolution   : 16-bit
3D enhancement   : Analog Devices Phat Stereo

Current setup
Mic gain         : +20dB [+20dB]
POP path         : pre 3D
Sim. stereo      : off
3D enhancement   : on
Loudness         : off
Mono output      : Mic
Mic select       : Mic2
ADC/DAC loopback : off
Extended ID      : codec=0 rev=0 DSA=0 VRA
Extended status  : VRA
PCM front DAC    : 48000Hz
PCM ADC          : 48000Hz


AD18XX configuration
Unchained        : 0x1000,0x0000,0x0000
Chained          : 0x0000,0x0000,0x0000

I have logged lspic -vvvxxx  before and after a s2ram, before
/etc/init.d/alsa-utils restart and after that command.
Attaching the lspci after a resume from ram and the diff after restart
alsa-utils. Also attaching the
/proc/asound/card0/codec97#0/ac97#0-0+regs after resume and after the
restart alsa-utils.

cheers
Ch. Hartmann


2009/12/14 Ray Lee <ray-lk@...rabbit.org>:
> On Fri, Dec 11, 2009 at 4:00 PM, Robert Hancock <hancockrwd@...il.com> wrote:
>> On 12/11/2009 03:21 AM, Christian Hartmann wrote:
>>>
>>> hello list,
>>>
>>> everytime I suspended to disk or to ram, regardless of the used kernel
>>> (git or stable from distri), I must restart alsa to hear sound again.
>>> searched google and tried a lot but still the same awful behaviour.
>>> Has anybode some suggestions for me? is this alsa related ? or is this
>>> a kernel issue which could be dealt here?
>>
>> I'm not sure what you mean by restarting ALSA, do you mean reloading the
>> audio device module or something?
>>
>> You didn't mention which kind of sound hardware you were using either..
>
> Data point: Older versions of PulseAudio are very picky about the
> timing data that comes back from ALSA, and throws a hissy-fit and goes
> and sulks if it believes it's getting lied to. Perhaps you need to try
> upgrading the PulseAudio packages, and try again.
>
I searched for an update for pulseaudio, but I have the latest version
ii  libpulse0                  0.9.21-1
But as I mentioned above, I am not using pulseaudio plugins (only when
using skype). I used the mpg321 or ogg123 commandlinetools for hearing
some music

-- 
......oooO..............
.....(....).....Oooo...
......)../.....(....)....
.....(_/.......)../.....
...............(_/.......
... I WAS ..............
.......... HERE...... ;)

View attachment "proc_asound_card0_codec97_regs.after_s2ram.txt" of type "text/plain" (768 bytes)

View attachment "proc_asound_card0_codec97_regs.after_s2ram_restartALSA.diff.txt" of type "text/plain" (456 bytes)

View attachment "lspci.after.3.txt" of type "text/plain" (23605 bytes)

View attachment "lspci.after.3_ALSArestart.diff.txt" of type "text/plain" (1027 bytes)

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