[alsa-devel] HDA Intel IDT 92HD71B7X - HP Pavilion DV7-1299EF - Only the left speaker is working

Wael Nasreddine (a.k.a eMxyzptlk) mla at nasreddine.com
Mon Nov 16 18:22:56 CET 2009

On Mon, Nov 16, 2009 at 18:15, Takashi Iwai <tiwai at suse.de> wrote:
> At Mon, 16 Nov 2009 18:07:40 +0100,
> Wael Nasreddine (a.k.a eMxyzptlk) wrote:
> >
> > Thank you that actually worked, I have now both Front Left and LFE working,
> > but it's very hard to tell coz the LFE is louder than both front speakers I
> > even put my ear directly on the speaker and it still can't be 100% sure, but
> > I think that for now what is working is 'Front Left + LFE', I can't hear
> > anything from the right speaker.. but it's already an improvement to what I
> > had.
> Hm, if it's *so* loud, we should have a mixer control for this, I
> guess.
It's not *so* loud, but yea I appreciate a mixer for it yes! at least
I can tell which speaker is working and also I can listen to Music
without bothering someone else because with LFE the base is loud..

> > Do you have any suggestion on how to enable the right speaker?
> No, already out of idea...  I wonder whether any other people
> suffering from the same problem?
Julien has the same PC, same OS, same Kernel, same BIOS Version, but
the weird thing is that he is not suffering from this problem, which
obviously led me to beleive a hardware defect, but it's working on

@Julien, could you plz try the patch (attached
enable-lfe-on-dv7.patch) against
? and Tell us if it changes anything for you?

> thanks,
> Takashi

Wael Nasreddine

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