Bug 498740

Summary:	No sound on Intel ICH7/HDA & various pulseaudio errors
Product:	[Fedora] Fedora	Reporter:	Patrick <rh_bugzilla>
Component:	pulseaudio	Assignee:	Lennart Poettering <lpoetter>
Status:	CLOSED WORKSFORME	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	rawhide	CC:	lkundrak, lpoetter, wtogami
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-05-05 16:18:14 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Patrick 2009-05-02 17:04:37 UTC

Description of problem:
The sound on my laptop with Intel HDA/ICH7 does not work at all. Tried different apps (Rhythmbox, Audacity, Audacious) to run music in ogg and flac formats. Checking /var/log/messages I found the errors below. Suggestions howto further analyze this problem and fix it is most appreciated.

Version-Release number of selected component (if applicable):
pulseaudio-0.9.15-11.fc11.x86_64

How reproducible:
Install the F11 Preview & update to Rawhide. Start laptop, work a while with it and then check /var/log/messages

Steps to Reproduce:
1. Install F11 Preview & update to Rawhide
2. work with laptop for a while
3. check /var/log/messages

Actual results:
May 1 04:10:08 localhost pulseaudio[30460]: reserve-wrap.c: Failed to acquire reservation lock on device 'Audio0': Input/output error

May 1 12:52:21 localhost pulseaudio[2455]: alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write!

May 1 12:52:21 localhost pulseaudio[2455]: alsa-sink.c: Most likely this is a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA developers.

May 1 12:52:21 localhost pulseaudio[2455]: alsa-sink.c: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail.

May 1 13:02:47 localhost pulseaudio[2455]: module-rescue-streams.c: Failed to move source output 6 "PulseAudio Volume Control" to auto_null.monitor.

May 1 13:02:47 localhost pulseaudio[2455]: reserve-wrap.c: Failed to acquire reservation lock on device 'Audio0': Input/output error

May 1 13:02:51 localhost pulseaudio[2455]: module-rescue-streams.c: Failed to move source output 9 "PulseAudio Volume Control" to alsa_input.pci_8086_27d8_sound_card_0.

Expected results:
Sound and no errors

Additional info:

Comment 1 Patrick 2009-05-03 13:40:39 UTC

I did some more searching on bz and followed the advice in bug 477935. I started alsamixer with 

$ alsamixer -c0

Then I turned up all the non-microphone related sliders making sure that none of them were muted. And voila sound is back. So please consider the "no sound on Intel ICH7/HDA" part of this bugreport as erroneous. Sorry for the noise. Maybe the pulseaudio errors are still somehow useful.

Comment 2 Lennart Poettering 2009-05-05 16:18:14 UTC

Hmm, those errors are mostly not that relevant. Your driver is buggy, but that's known and will hopefully be fixed eventually. Nothing too serious.

Please follow the suggestions here:

http://forums.fedoraforum.org/showpost.php?p=1206905&postcount=14

This will allow us to make sure that in future the mixer is configured properly by default for machines like yours.