ALSA Suddenly stopped working

mihochan · Posted: Tue Mar 28, 2006 5:11 am Post subject: ALSA Suddenly stopped working

Suddenly I can no longer get sound from my laptop.

Everything was working and I can't think what changes i might have made to break it.

Here are the details of my system. Any help would be greatly appreciated.

Sound Card

00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)

/etc/modules.d/alsa
alias /dev/mixer snd-mixer-oss
alias /dev/dsp snd-pcm-oss
alias /dev/midi snd-seq-oss

alias snd-card-0 snd-intel8x0
alias sound-slot-0 snd-intel8x0
# --- END: Generated by ALSACONF, do not edit. ---

Loaded Modules

Module Size Used by
pcmcia 36908 4
snd_pcm_oss 47904 0
snd_mixer_oss 17792 1 snd_pcm_oss
snd_seq_dummy 4740 0
snd_seq_oss 31488 0
snd_seq_midi_event 7936 1 snd_seq_oss
snd_seq 49488 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 9100 3 snd_seq_dummy,snd_seq_oss,snd_seq
eth1394 19844 0
ohci_hcd 20356 0
pcspkr 4356 0
ohci1394 32304 0
ieee1394 92632 2 eth1394,ohci1394
yenta_socket 25868 4
rsrc_nonstatic 13440 1 yenta_socket
pcmcia_core 40856 3 pcmcia,yenta_socket,rsrc_nonstatic
snd_intel8x0 31772 1
snd_ac97_codec 84256 1 snd_intel8x0
snd_ac97_bus 3200 1 snd_ac97_codec
snd_pcm 82692 3 snd_pcm_oss,snd_intel8x0,snd_ac97_codec
snd_timer 24324 2 snd_seq,snd_pcm
snd 51684 11 snd_pcm_oss,snd_mixer_oss,snd_seq_oss,snd_seq,snd_seq_device,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
snd_page_alloc 11144 2 snd_intel8x0,snd_pcm
i2c_i801 9228 0
i2c_core 21632 1 i2c_i801
ehci_hcd 28936 0
uhci_hcd 31120 0
rtc 10004 0
usbcore 118148 4 ohci_hcd,ehci_hcd,uhci_hcd
rfcomm 38676 0
l2cap 25856 3 rfcomm
bluetooth 47204 2 rfcomm,l2cap
ac 5892 0
e100 34308 0
mii 6272 1 e100
speedstep_centrino 8304 0
freq_table 5536 1 speedstep_centrino
video 17028 0
button 7696 0
battery 10500 0
cpufreq_ondemand 7464 0
sg 30876 0
scsi_mod 94600 1 sg
ieee80211_crypt_tkip 10752 0
ieee80211_crypt_ccmp 7936 0
ieee80211_crypt_wep 6016 0
ipw2100 124132 0
ieee80211 44392 1 ipw2100
ieee80211_crypt 7296 4 ieee80211_crypt_tkip,ieee80211_crypt_ccmp,ieee80211_crypt_wep,ieee80211
firmware_class 11136 2 pcmcia,ipw2100
joydev 10432 0
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peka · Posted: Tue Mar 28, 2006 6:33 am Post subject:

This may sound obvious, but did you (re)complie your kernel after installing alsa-driver? If so, you need to recompile alsa-driver and modules-update. Well, this is as long as you use user space dirver. If you use kernel driver, check your kernel config to see if you might have removed something.
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desktopfan · Posted: Tue Mar 28, 2006 12:34 pm Post subject:

I have exactly the same problem. My sound just stopped working.

I tried a livecd and it worked fine...

I did get some sound when I tried a different kernel but that has also suddenly stopped working!
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wjb · Posted: Tue Mar 28, 2006 7:54 pm Post subject:

Any error messages when it boots, or in the log?

mihochan · Posted: Wed Mar 29, 2006 1:39 am Post subject:

No error messages. I am sure that I have followed the ALSA set up correctly and unmuted all the channels.

I suspect that the problem is with some new package I installed

Here is the recent entries in the emerge.log. The later entries are me trying to fix things.

Eesu · n00b Joined: 27 Apr 2005 Posts: 16

I am recently reinstalling Gentoo on my TV box, and I've got the same sound card (only Rev 01) and I cant seem to get sound working at all. No errors or anything, just no audio output.

Alsamixer shows a secondary "Analog AD1981" name, but other than that, everything seems completely normal. I'm using Gentoo-sources. Perhaps some code in the newer kernel sources got broken? I see there are some more ppl having this same issue.

BalleClorin · n00b Joined: 10 Dec 2005 Posts: 6

I also have the axact same problem on my laptop, similar soundcard:
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01)
The last thing i did before going to work yesterday was watching a movie with sound working perfectly, when I came home there was no sound. AFAIK nothing has changed....

[SOLVED]: I just found out that the volume keys on the laptop work, I've always assumed these where win only and never bothered to try to make them work in linux....

01mf02 · Posted: Sun May 14, 2006 9:21 am Post subject:

A working configuration is gentoo-sources-2.6.15-r7 with ALSA compiled into the kernel. If that fails, it probably is due to an external package.

mihochan · Posted: Sun May 14, 2006 10:00 am Post subject:

My sound is working again. I'm not sure why but I recompiled the ALSA-HEADERS package. This might have been the problem.
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In the long run we are all dead - Keynes