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

[Takashi Iwai]

At Mon, 16 Nov 2009 20:59:22 +0100,
Wael Nasreddine (a.k.a eMxyzptlk) wrote:
> 
> [1  <text/plain; UTF-8 (7bit)>]
> On Mon, Nov 16, 2009 at 20:30, Takashi Iwai <tiwai at suse.de> wrote:
> 
> > At Mon, 16 Nov 2009 19:34:45 +0100,
> > Wael Nasreddine (a.k.a eMxyzptlk) wrote:
> > >
> > > [1  <text/plain; UTF-8 (quoted-printable)>]
> > > On Mon, Nov 16, 2009 at 18:36, Takashi Iwai <tiwai at suse.de> wrote:
> > > >
> > > > At Mon, 16 Nov 2009 18:22:56 +0100,
> > > > Wael Nasreddine (a.k.a eMxyzptlk) wrote:
> > > > >
> > > > > 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..
> > > >
> > > > OK, how about the patch below?
> > > >
> > > > > > > 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
> > > > > Windows!
> > > >
> > > > This is really weird...
> > > >
> > > >
> > > > Takashi
> > > >
> > >
> > > Because the patch is not attached, I can't quite copy it correctly
> > > from Gmail,
> >
> > You have a pull-down menu at the top-right corner of each mail in
> > gmail.  There you can choose "Show original".  This will show the raw
> > texts so that you can save it from the browser.
> >
> > Possibly this menu item appears only in English language mode, though.
> >
> > I have this and that's what I used earlier but it failed on many hunks, now
> it only failed on one, the last hunk, so I applied the last one by hand

Maybe you aren't using the very latest alsa-driver code?

> > > so I did it by hand (attached), I applied it but I don't
> > > see the mixer anywhere in alsamixer. I double checked the patch
> > > though...
> >
> > I revised the patch.  Attached below.
> > Try it instead.  You'll have "Bass Speaker" mixer switch, maybe at the
> > most right side.
> >
> >
> > Takashi
> >
> 
> Thank you, this patch works indeed, I can enable/disable the LFE as I like
> now, Thank you so much !!
> 
> Why do you think the drivers needed special GPIO settings while another PC,
> same PC didn't need anything, BIOS BUG or maybe hardware defect?

Well, the question is whether this bass effect wasn't used on any HP
dv laptops at all until yet, or it was already enabled as default.

As I have no hardware itself, I really have no idea about it...
Can anyone tell whether the bass was enabled already?


thanks,

Takashi