Lost sound :(

Message

zgredek · Post by **zgredek** » Thu Oct 20, 2011 4:08 pm

Recently, while playing with variuos options with my microphone I think i broke some settings on my soundcard...

The command after which it stoped working (copied from the log) is:

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ecasound -B:rtlowlatency -b:256 -f:s32_le,2,44100 -i:alsahw,0,0 -o:alsahw

Now, i'm unable to play any sounds via audacious for instance...

Strange thing because:

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ecasound -i tone,sine,880 -o alsa

plays just fine (but quietly).

How to rewert the changes and make it work again?

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lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)

Thank you for any help

zgredek · Post by **zgredek** » Mon Oct 24, 2011 9:11 pm

Anyone, please?

v_andal · Post by **v_andal** » Tue Oct 25, 2011 7:48 am

Check what alsa says. aplay -l. alsamixer. See which alsa module is loaded and which parameters are used. Read /usr/src/linux/Documentation/sound/alsa/HD-Audio.txt

Sorry, I've never used ecasound, so I can't say what that command would do, but it makes sense to check alsa settings anyway.

urcindalo · Post by **urcindalo** » Tue Oct 25, 2011 8:17 am

I don't know if I'm of any help, but I noticed that the recent upgrade to gentoo-sources-3.0.6 silenced my speakers on my desktop box with an Intel sound card:

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00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller

A downgrade back to 2.6.39-r3 solved the issue for me. I've double checked this and the kernel version is the culprit.

I upgraded the kernel using my regular procedure, including a make oldconfig over the previous .config file and answering the popping questions. What amazes me the most is that I did the same on my laptop but I found no problem regarding sound (I don't recall right now its sound card, although I'm positive it also needs the snd-hda-intel module but with a different sub-selection).

Maybe there's something broken or incompatible between 3.0.6 and our sound cards?

zgredek · Post by **zgredek** » Tue Oct 25, 2011 4:39 pm

Thank you fot all the ideas, however none of them helped...

v_andal,

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$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC883 Analog [ALC883 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC883 Digital [ALC883 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

alsamixer works just fine, all the channels are at 100%.

urcindalo,
I'm still using 2.6.x and the same kernel version was used before. Everything worked just ok.

Here's a lsit of loaded modules:

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Module                  Size  Used by
coretemp                6272  0 
it87                   18188  0 
hwmon_vid               3712  1 it87
hwmon                   3204  2 coretemp,it87
bnep                   12160  2 
rfcomm                 34192  4 
l2cap                  20736  16 bnep,rfcomm
snd_seq                44368  0 
snd_seq_device          7052  1 snd_seq
snd_pcm_oss            36384  0 
snd_mixer_oss          14464  1 snd_pcm_oss
vmnet                  38456  0 
vmci                   47960  0 
vmmon                  68016  0 
tuner                  40480  0 
tea5767                 6020  1 tuner
tda8290                11524  1 tuner
tuner_simple            8968  1 tuner
mt20xx                 12424  1 tuner
tea5761                 5252  1 tuner
saa7134               120784  0 
compat_ioctl32          2048  1 saa7134
videobuf_dma_sg        11780  1 saa7134
videobuf_core          15492  2 saa7134,videobuf_dma_sg
ir_kbd_i2c              8336  1 saa7134
ir_common              31108  2 saa7134,ir_kbd_i2c
videodev               26368  1 saa7134
v4l2_common            16256  3 tuner,saa7134,videodev
v4l1_compat            13956  2 saa7134,videodev
usbhid                 26688  0 
snd_hda_intel         275228  4 
snd_pcm                66052  3 snd_pcm_oss,snd_hda_intel
snd_timer              18820  3 snd_seq,snd_pcm
snd_page_alloc          8328  2 snd_hda_intel,snd_pcm
thermal                13468  0 
button                  7056  0 
processor              29064  1 thermal
snd_hwdep               7428  1 snd_hda_intel
snd                    42980  14 snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_intel,snd_pcm,snd_timer,snd_hwdep
soundcore               6496  1 snd

krinn · Post by **krinn** » Tue Oct 25, 2011 10:57 pm

0 codecs loaded for your soundcard.
look here : http://forums.gentoo.org/viewtopic-p-63 ... ml#6339697

zgredek · Post by **zgredek** » Wed Oct 26, 2011 3:02 pm

krinn wrote:0 codecs loaded for your soundcard.
look here : http://forums.gentoo.org/viewtopic-p-63 ... ml#6339697

Ok, so how do you explain the fact that:

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ecasound -i tone,sine,880 -o alsa

produces a sound (tone) through alsa?

Plus, the same modules were loaded before the crash and no kernel update was done in the meantime.

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$ cat /proc/asound/card0/codec#2 
Codec: Realtek ALC883
Address: 2
Vendor Id: 0x10ec0883
Subsystem Id: 0x1458e601
Revision Id: 0x100002
No Modem Function Group found
Default PCM:
    rates [0x560]: 44100 48000 96000 192000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
Default Amp-In caps: N/A
Default Amp-Out caps: N/A

Thank you for your time

krinn · Post by **krinn** » Wed Oct 26, 2011 5:02 pm

If you have read the whole thread you would have seen that without that, the last entry by user joehni says he was having sound but one channel wasn't working, until... http://forums.gentoo.org/viewtopic-p-63 ... ml#6371123

If you want the technical explain why it work without it for some users, why it doesn't for others, why some users "think" it work for them while they in fact have an half working setup... ask alsa devs not me.