[alsa-devel] [PATCH] hda-intel: Enable Analog CD Input from internal ATAPI connector on Asus M2N-SLI.
tiwai at suse.de
Thu Dec 13 16:42:06 CET 2007
At Tue, 11 Dec 2007 18:46:08 +0100,
Johannes Stezenbach wrote:
> the internal CD connector on my Asus M2N-SLI Deluxe board doesn't
> work without the patch below, /proc/asound/card0/codec#0
> shows that the pin is disabled (Pin-ctls: 0x00).
> I used kernel linux-2.6.24-rc4-190-g94545ba from Linus' git tree.
> During my experiments I found that loading the snd-hda-intel
> driver with model=auto also enables the CD connector. It seems
> that for my board (BIOS version 1102) the BIOS configuration
> is correct and the "Asus M2N-SLI" quirk shouldn't be necessary?
> I get the following debug output:
> ALSA sound/pci/hda/hda_intel.c:727: codec_mask = 0x1
> ALSA sound/pci/hda/hda_codec.c:2140: hda_codec: model 'auto' is selected
> ALSA sound/pci/hda/hda_codec.c:2760: autoconfig: line_outs=4 (0x12/0x16/0x24/0x25/0x0)
> ALSA sound/pci/hda/hda_codec.c:2764: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
> ALSA sound/pci/hda/hda_codec.c:2768: hp_outs=1 (0x11/0x0/0x0/0x0/0x0)
> ALSA sound/pci/hda/hda_codec.c:2776: inputs: mic=0x17, fmic=0x14, line=0x15, fline=0x0, cd=0x18, aux=0x0
> (which matches the board's actual connections)
> Anyway, if you think the patch below is correct the please apply. It
> works fine for me.
Thanks, applied the patch to ALSA HG tree now.
> There is one thing that I don't get however: If I run aplay it creates
> an additional "PCM" mixer control, which however doesn't have any
> effect. I guess this is intended for softvol, but I don't need
> it. How do I stop aplay from creating this control?
> (If it matters, I use Debian unstable, alsa-lib 1.0.15.)
The PCM volume has effects when the apps use "default" PCM properly.
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