[CentOS] No sound on HP 8540w, guidance requested

[Robert Heller]

At Wed, 11 May 2011 07:31:37 -0700 CentOS mailing list <centos at centos.org> wrote:

> 
> At 01:35 PM 5/7/2011, you wrote:
> >On 07/05/11 20:32, David wrote:
> > >
> > > I got two recommendations:
> > > a) Used 'alsamixer' to unmute all channels.  The were, as a responder
> > > suggested, muted.
> > > b) Installed kmod-alsa from elrepo.  It produced a bunch of warnings
> > > which I ignored.
> > > c) I performed lspci | grep -i audio, and got
> > >
> > > 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset
> > > High Definition Audio (rev 06)
> > > 01:00.1 Audio device: nVidia Corporation High Definition Audio
> > > Controller (rev a1)
> >
> ># lspci -n | grep '00:1b.0'
> >00:1b.0 0403: 8086:293e (rev 02)
> >
> >and take the Vendor:Device ID pairing (8086:293e in my example) and
> >search for a matching driver supporting that device:
> >
> >
> ># grep -i 8086 /lib/modules/*/modules.alias | grep -i 293e
> >/lib/modules/2.6.18-128.el5/modules.alias:alias
> >pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel
> >/lib/modules/2.6.18-164.el5/modules.alias:alias
> >pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel
> >/lib/modules/2.6.18-194.el5/modules.alias:alias
> >pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel
> >/lib/modules/2.6.18-238.9.1.el5/modules.alias:alias
> >pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel
> >/lib/modules/2.6.18-238.el5/modules.alias:alias
> >pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel
> >/lib/modules/2.6.18-53.el5/modules.alias:alias
> >pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel
> >/lib/modules/2.6.18-92.el5/modules.alias:alias
> >pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel
> >
> >which shows me the snd-hda-intel driver present in kernel-2.6.18-53.el5
> >onwards supports my hardware.
> >
> >Now do the same for your hardware and show us the results.
> >
> 
> 
> I performed the tests as you indicated.
> Here's what I got...
> 
> #lspci -n | grep -i '00:1b,0'
> 00:1b:0 0403: 8086:3b56 (rev06)
> #grep '8086' /lib/modules/*/modules.alias | grep -i '3b56'
> 
> No output from the above
> 
> The test on the other device
> #lspci -n | grep -i '01:00.1'
> 01:00.1 0403: 10de:0be2 (rev a1)
> #grep '10de' /lib/modules/*/modules.alias | grep -i '0be2'

Try:

sauron.deepsoft.com% grep -i '10de' /lib/modules/*/modules.alias | grep bc04sc03 
/lib/modules/2.6.18-238.9.1.el5/modules.alias:alias pci:v000010DEd*sv*sd*bc04sc03i00* snd-hda-intel
/lib/modules/2.6.18-238.9.1.el5xen/modules.alias:alias pci:v000010DEd*sv*sd*bc04sc03i00* snd-hda-intel

It appears that *ALL* nVidia motherboard sound controllers use the
same Intel chip. The *device* ID is wildcarded.  The 'bc04sc03' selects
sound devices as opposed to SATA, Network, etc. controllers. Oh, and the
alias files have the letters in uppercase and grep *by default* is case
sensitive... sauron.deepsoft.com has a nVidia-chipset motherboard and
the snd-hda-intel driver works just fine.  sauron.deepsoft.com is a
desktop machine and I have a set of external powered speakers jacked
into the audio output port.

> 
> No output from the above.
> 
> (not lookin' good?)

Just needed a more clever set of grep expressions...

It appears that you do have the proper driver for at least one of your
sound controllers.  The question remains: which one (if either) is
connected to the internal speakers...

Question: does this laptop have a headphone/speaker jack?  If so, what
happens when you plug in a set of speakers or headphones in and play a
test sound?  

> 
> David 
> 
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos
> 
>                                                                              

-- 
Robert Heller             -- 978-544-6933 / heller at deepsoft.com
Deepwoods Software        -- http://www.deepsoft.com/
()  ascii ribbon campaign -- against html e-mail
/\  www.asciiribbon.org   -- against proprietary attachments