[alsa-devel] "No codecs found" on Intel HDA + AD1988A
tiwai at suse.de
Sun Dec 14 10:17:52 CET 2008
At Sat, 13 Dec 2008 21:57:04 +0300,
Alexander Chemeris wrote:
> I have Asus P5B-V motherboard with integrated Intel HDA
> audio and AD1988A codec (I see the chip on the board).
> About half a year ago or so it used to work, but now when
> snd-hda-intel module is loaded it claims it can't find a codec:
> $ dmesg | grep -i hda
> [ 13.648205] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level,
> low) -> IRQ 22
> [ 13.648236] HDA Intel 0000:00:1b.0: setting latency timer to 64
> [ 13.680537] hda-intel: no codecs found!
> [ 13.680589] HDA Intel 0000:00:1b.0: PCI INT A disabled
> I tried different recent versions of ALSA to no avail.
> So far I've tried:
> * 1.0.17 with Ubuntu patches
> * 1.0.18 with Ubuntu patches
> * 1.0.18a downloaded half an hour ago from here:
> I also tried to compile 1.0.16, but seems it is not compatible
> with the kernel:
> $ uname -a
> Linux nidus 2.6.27-10-generic #1 SMP Fri Nov 21 19:19:18 UTC 2008
> x86_64 GNU/Linux
> When I tried 1.0.18a, I also manually loaded snd-hda-codec_analog before
> loading snd-hda-intel without any success.
Note that it's not 1.0.18a but a shapshot version.
Anyway, try to build with --debug=verbose configure option. Usually
you'll have a bit more messages.
At least, you'll get a message like "codec_mask = 0xxxx" at probing.
If the value is zero, it means that your hardware doesn't set the
codec slot bit, usually a BIOS issue.
> And yeah, when I just
> run `modprobe snd-hda-intel` only following modules are loaded:
> $ lsmod | grep snd
> snd_hda_intel 37864 0
> snd_hda_codec 86784 1 snd_hda_intel
> snd_hwdep 17160 1 snd_hda_codec
> snd_pcm_oss 52256 0
> snd_mixer_oss 25088 1 snd_pcm_oss
> snd_pcm 98824 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
> snd_seq_oss 43776 0
> snd_seq_midi_event 16768 1 snd_seq_oss
> snd_seq 67744 4 snd_seq_oss,snd_seq_midi_event
> snd_timer 33424 2 snd_pcm,snd_seq
> snd_seq_device 16788 2 snd_seq_oss,snd_seq
> snd 83144 10
> soundcore 16800 1 snd
> snd_page_alloc 18576 2 snd_hda_intel,snd_pcm
> What can I do to help get my audio working again?
> I don't want to install different kernel or restart computer
> (well, as a last resort, may be...), but I easily can
> test different any patches, etc.
> PS I don't think it matters, but I use Ubuntu 8.10 x64.
> Alexander Chemeris.
> SIPez LLC.
> SIP VoIP, IM and Presence Consulting
> tel: +1 (617) 273-4000
> Alsa-devel mailing list
> Alsa-devel at alsa-project.org
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