[alsa-devel] Microphone not working on PCI ID 8086:3b56
fengguang.wu at intel.com
Thu Sep 30 15:29:37 CEST 2010
On Thu, Sep 30, 2010 at 09:11:07PM +0800, Jeff Chua wrote:
> On Tue, Sep 28, 2010 at 9:42 PM, Takashi Iwai <tiwai at suse.de> wrote:
> > Enable all CONFIG_SND_HDA_*.
> Done that. Still no mic.
> On Tue, Sep 28, 2010 at 9:42 PM, Wu Fengguang <fengguang.wu at intel.com>
> > It's easier to enable all of them. They are small modules.
> Tried just about everything, still no mic. Sounds works in all cases.
> I found that with SND_HDA_CODEC_INTELHDMI selected, SND_DYNAMIC_MINORS
> will be enabled by default which won't work in my case as I'm not using
> udev. Here's a patch to take away the default so non-udev will still
Intel HDMI audio selects SND_DYNAMIC_MINORS because it runs out of the
static minor numbers. I initially proposed an extended static
allocation scheme here:
http://comments.gmane.org/gmane.linux.alsa.devel/72916 however the
idea was rejected.
> Do I really need udev to get mic to work?
You can disable SND_HDA_CODEC_INTELHDMI for now. You don't need it.
> --- lx/sound/pci/hda/Kconfig.org 2010-09-14 16:34:52.000000000 +0800
> +++ lx/sound/pci/hda/Kconfig 2010-09-14 16:35:09.000000000 +0800
> @@ -145,7 +145,6 @@
> config SND_HDA_CODEC_INTELHDMI
> bool "Build INTEL HDMI HD-audio codec support"
> - select SND_DYNAMIC_MINORS
> default y
> Say Y here to include INTEL HDMI HD-audio codec support in
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