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Bug 456108 - No sound after recent(?) updates
Summary: No sound after recent(?) updates
Alias: None
Product: Fedora
Classification: Fedora
Component: alsa-utils
Version: 9
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Jaroslav Kysela
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2008-07-21 15:42 UTC by Jón Fairbairn
Modified: 2009-01-17 18:18 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2009-01-17 18:18:54 UTC

Attachments (Terms of Use)
outputs of lshal (deleted)
2008-07-21 15:42 UTC, Jón Fairbairn
no flags Details

Description Jón Fairbairn 2008-07-21 15:42:19 UTC
Description of problem:
Some time in the last fortnight or so, sound stopped working on my laptop (IBM
X30 (26724XG)

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

How reproducible:

Steps to Reproduce:
1. aplay -d hw:0 /usr/share/sounds/startup3.wav
(or paplay or play)
Actual results:
control passes to aplay for about the right length of time,
but no sound is heard.

Expected results:
An irritating jingle should come out of the loudspeaker.

Additional info:

This all worked up to some point in the last fortnight
(presumably an update).  I'm afraid I can't say more
accurately than that because I don't make much use of the
sound when I'm at home (but I do use it when on the train,
and I'm going to be soon). The terminal bell (pcspkr) works,
sound works in Windows XP.

I've tried running with the kernel (2.6.25-14) that comes in
the installation iso, but sound still doesn't work though it
did with that kernel in the original install, so I don't think
it's a kernel problem. There's no surround sound in
gnome-volume-control, so bug #449739 doesn't apply, I've
tried muting, changing level and unmuting the pcm in
alsamixer (and gnome-volume-control) as per bug #438448#c8
to no avail, so it's not that either. 

I've tried 0,1,2,3,4 as values for the ac97_quirk parameter
to snd_intel8x0, but that just seems to modify the click
made when the module is loaded.

pavucontrol under the playback tab says "No streams
available". I don't know if that's significant because I
didn't look at it when sound was working. Under output
devices it lists

ALSA PCM on front:0 (Intel 82801CA-ICH3) via DMA

and nothing else.

lspci -nn -s 00:1f.5
00:1f.5 Multimedia audio controller [0401]: Intel Corporation 82801CA/CAM AC'97
Audio Controller [8086:2485] (rev 02)

I'll attach output of
for i in $(hal-find-by-capability --capability alsa); do lshal -lu $i; done

Comment 1 Jón Fairbairn 2008-07-21 15:42:19 UTC
Created attachment 312271 [details]
outputs of lshal

Comment 2 Jón Fairbairn 2008-07-21 15:44:33 UTC
alsa-lib was maybe wrong component?

Comment 3 Jaroslav Kysela 2008-09-29 06:51:20 UTC
Try remove /etc/alsa/asound.state file and do 'reboot -f' (I know the force reboot seems ugly, but with normal reboot the old /etc/alsa/asound.state will be created again).

Also, 'alsaunmute' command might help.

Comment 4 Jón Fairbairn 2008-09-29 09:17:02 UTC
Unfortunately the installation in question is 350 miles away, so I can't help until I go back there in December (I needed sound working, so I moved Fedora to an external disc and installed Ubuntu).

Comment 5 Jón Fairbairn 2009-01-17 18:18:54 UTC
I tried the above suggestion, first taking a copy of /etc/alsa/asound.state and got sound.  I then ran a system update and rebooted.

After that, restoring the copy of asound.state didn't reproduce the problem, so I have sound but no useful info.

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