Bug 737759 - pulseaudio struggling audio at ThinkPad T61
Summary: pulseaudio struggling audio at ThinkPad T61
Alias: None
Product: Fedora
Classification: Fedora
Component: pulseaudio
Version: 19
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Lennart Poettering
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2011-09-13 03:07 UTC by Marcelo Moreira de Mello
Modified: 2015-02-17 13:52 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2015-02-17 13:52:49 UTC

Attachments (Terms of Use)

Description Marcelo Moreira de Mello 2011-09-13 03:07:01 UTC
Description of problem:
pulseaudio cut/struggling audio at ThinkPad T61

Linux notebook.mmello.local 3.1.0-0.rc5.git0.0.fc16.x86_64 #1 SMP Fri Sep 9 14:33:44 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

[root@notebook ~]# rpm -aq | grep -e pulse -e alsa 

Sep 12 23:44:42 notebook pulseaudio[2469]: module-alsa-card.c: Failed to find a working profile.
Sep 12 23:44:42 notebook pulseaudio[2469]: module.c: Failed to load  module "module-alsa-card" (argument:
"device_id="29" name="platform-thinkpad_acpi" card_name="alsa_card.platform-thinkpad_acpi" tsched=yes ignore_dB=no
card_properties="module-udev-detect.discovered=1""): initialization failed.

Version-Release number of selected component (if applicable):
Fedora 16 Alpha

How reproducible:

Actual results:

Audio struggling 

Expected results:

Audio works as expected

Additional info:


  Adding the module thinkpad_acpi into /etc/modprobe.d/blacklist.conf solves the issue. 

notebook $> cat /etc/modprobe.d/blacklist.conf  | grep think
blacklist thinkpad_acpi

Comment 1 Marcelo Moreira de Mello 2011-09-13 03:09:57 UTC
[root@notebook ~]# lsmod  | grep snd
snd_hda_codec_conexant    62115  1 
snd_hda_intel          28992  5 
snd_hda_codec          91636  2 snd_hda_codec_conexant,snd_hda_intel
snd_hwdep              13595  1 snd_hda_codec
snd_seq                57219  0 
snd_seq_device         14173  1 snd_seq
snd_pcm                85340  3 snd_hda_intel,snd_hda_codec
snd_timer              29131  2 snd_seq,snd_pcm
snd                    70856  17 snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer
soundcore              14562  1 snd
snd_page_alloc         14039  2 snd_hda_intel,snd_pcm

[root@notebook ~]# cat /proc/asound/pcm 
00-00: CONEXANT Analog : CONEXANT Analog : playback 1 : capture 1
00-01: Conexant Digital : Conexant Digital : playback 1
[root@notebook ~]# cat /proc/asound/devices 
  1:        : sequencer
  2: [ 0- 1]: digital audio playback
  3: [ 0- 0]: digital audio playback
  4: [ 0- 0]: digital audio capture
  5: [ 0- 0]: hardware dependent
  6: [ 0]   : control
 33:        : timer
[root@notebook ~]# cat /proc/asound/
card0/   cards    devices  hwdep    Intel/   modules  oss/     pcm      seq/     timers   version  
[root@notebook ~]# cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xfc020000 irq 51

Comment 2 Matthias Runge 2011-09-29 20:52:39 UTC
Sadly, unloading thinkpad_acpi does not fix the problem for me here. But it seems, thinkpad_acpi gets detected as sound card (??!)

Comment 3 Matthias Runge 2011-09-29 21:19:13 UTC
OK, I just disabled volume control via keys:
[root@sofja pulse]# cat /etc/modprobe.d/thinkpad.conf 
options thinkpad_acpi experimental=1 fan_control=1 volume_mode=2

and switched off simultaneous output via paprefs

Switching simultaneous output on kills pulseaudio for me repeatable.

Comment 4 Renato Botelho 2012-03-26 13:43:36 UTC
Same problem here on a T400.

Comment 5 Stefan Jensen 2012-12-27 21:32:25 UTC
Inserting a rule for pulseaudio to ignore the "ThinkPad EC - ThinkPad Console Audio Control" in udev can solve the "initialization failed" error without blacklisting "thinkpad_acpi" entirely.

#cat /etc/udev/rules.d/95-pulseaudio.rules
SUBSYSTEMS=="platform", DRIVERS=="thinkpad_acpi", ENV{PULSE_IGNORE}="1"

#cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xee240000 irq 46
29 [ThinkPadEC     ]: ThinkPad EC - ThinkPad Console Audio Control
                      ThinkPad Console Audio Control at EC reg 0x30, fw 7BHT40WW-1.13

Maybe this should go into "/usr/lib/udev/rules.d/90-pulseaudio.rules" as a default some day.

best regards


Comment 7 Fedora End Of Life 2013-04-03 15:58:38 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 19 development cycle.
Changing version to '19'.

(As we did not run this process for some time, it could affect also pre-Fedora 19 development
cycle bugs. We are very sorry. It will help us with cleanup during Fedora 19 End Of Life. Thank you.)

More information and reason for this action is here:

Comment 8 Fedora End Of Life 2015-01-09 16:47:00 UTC
This message is a notice that Fedora 19 is now at end of life. Fedora 
has stopped maintaining and issuing updates for Fedora 19. It is 
Fedora's policy to close all bug reports from releases that are no 
longer maintained. Approximately 4 (four) weeks from now this bug will
be closed as EOL if it remains open with a Fedora 'version' of '19'.

Package Maintainer: If you wish for this bug to remain open because you
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Comment 9 Fedora End Of Life 2015-02-17 13:52:49 UTC
Fedora 19 changed to end-of-life (EOL) status on 2015-01-06. Fedora 19 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

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