linux-kernel - Re: Microphone not working on PCI ID 8086:3b56

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Message-ID: <s5h4od7tf43.wl%tiwai@suse.de>
Date:	Thu, 30 Sep 2010 17:39:40 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Jeff Chua <jeff.chua.linux@...il.com>
Cc:	Wu Fengguang <fengguang.wu@...el.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	alsa-devel@...a-project.org
Subject: Re: Microphone not working on PCI ID 8086:3b56

At Thu, 30 Sep 2010 23:29:45 +0800,
Jeff Chua wrote:
> 
> On Thu, Sep 30, 2010 at 9:14 PM, Takashi Iwai <tiwai@...e.de> wrote:
> 
> > Check /sys/modules/snd_hda_intel/parameters/model whether you really
> > passed the correct value.
> 
> # cat /sys/module/snd_hda_intel/parameters/model
> lenovo-x200,(null),(null),(null),(null),(null),(null),(null)

OK, and did you get the corresponding kernel message?

> >> in my case as I'm not using udev. Here's a patch to take away the default so non-udev will still
> >> works.
> >
> > Wow, what's a conservative system :)
> 
> Keeping things simple :)  and my / root filesystem is mounted read-only.

Nowadays /dev is mostly tmpfs or its variant.


Takashi
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