[alsa-devel] Fix internal mic on Dell Vostro 3500

Takashi Iwai tiwai at suse.de
Wed Nov 9 08:47:10 CET 2011

At Tue, 8 Nov 2011 11:24:02 +0100,
Julian Wollrath wrote:
> Hello,
> the internal mic of my Dell Vostro 3500 was not working with kernel v3.2-rc1 
> (and propably with none of the older kernels).
> By choosing dell-s14 as the model I was able to get the internal mic working, 
> but now my externel mic jack was a second headphone out jack. So I looked at 
> the differences between the pin configurations of the auto model and the dell-
> s14 model and found out, that setting the value of on 0x11 from default 
> 0x400000f6 to 0x90a60160 was responsible for the working internal mic.
> I attached a patch that fixes this problem but it has a flaw. Since I did not 
> know what value I have to put in the second argument of SND_PCI_QUIRK I put 
> 0x0000 as dummy in there. It works for me but if anyone could give me a hint 
> on how to obtain, what I really have to put in there, I would be happy to fill 
> in the right value.

It's a PCI SSID value (not the codec's one).  Take a look at "lspci
-nv" output, and fill the subsystem device number of the corresponding

Also, don't forget to give your sign-off in the patch so that it'll be
merged properly to the upstream.



More information about the Alsa-devel mailing list