Takashi Iwai wrote:
At Sun, 09 Aug 2009 15:10:31 +0300,
Could you load the module with probe_only=1 option and give alsa-info.sh output (or at least codec#* proc file)?
Ok, will provide that info too. BTW,
CPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 21 (level, low) -> IRQ 21 PCI: Setting latency timer of device 0000:00:1b.0 to 64 ** codec:0xf5846800 ** spec->dmux_nids:0x00000000 BUG: unable to handle kernel NULL pointer dereference at 00000000 IP: [<f8c7b4d5>] :snd_hda_codec_idt:stac92xx_init+0x29b/0x520 *pde = 00000000 Oops: 0000 [#1] SMP
spec->dmux_nids is NULL. Found the following commit:
From: Takashi Iwai tiwai@suse.de Date: Wed, 29 Jul 2009 14:32:55 +0000 (+0200) Subject: ALSA: hda - Add missing DMUX initialization for auto-mic with STAC/IDT X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftiwai%2Fsound-2.6.git;a=comm...
ALSA: hda - Add missing DMUX initialization for auto-mic with STAC/IDT
Added the missing initialization of DMUX connection (to analog input) for auto-mic mode with STAC/IDT codecs.
Signed-off-by: Takashi Iwai tiwai@suse.de ---
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index abc44db..2405f84 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -4359,6 +4359,9 @@ static int stac92xx_init(struct hda_codec *codec) stac_toggle_power_map(codec, cfg->hp_pins[i], 1); } if (spec->auto_mic) { + /* initialize connection to analog input */ + snd_hda_codec_write_cache(codec, spec->dmux_nids[0], 0, + AC_VERB_SET_CONNECT_SEL, 0); if (enable_pin_detect(codec, spec->ext_mic.pin, STAC_MIC_EVENT)) stac_issue_unsol_event(codec, spec->ext_mic.pin); }