sound in Ubuntu 9.10

zongo saiba zongosaiba at gmail.com
Tue Mar 23 18:14:40 UTC 2010


Hey guys, 

I have been doing some reading my sound issue and unfortunately I have
no compatibility with my sound card which is 
Codec: Conexant CX20582 (Pebble)

I did find that modifying the alsa-base.conf like this helpful: 
options snd-hda-intel model=eapd probe_mask=1 position_fix=1

>From what I gather, it mutes the speakers but nothing really specific to
the chip set conexant that my machine is using. It does allow me to get
external speakers working ok but not external headsets connected on the
jack. 
Th jack sensor is just not activated at all. 

If that can help others, you need to add that line to alsa-base.conf in
"modprobe.d"

Let me if you guys have any other input.. I will keep looking on my
side. 

Cheers guys for your help... 

zongo 



On Sat, 2010-03-20 at 19:20 +0000, Frans Ketelaars wrote:
> On Sat, 20 Mar 2010 13:58:39 +0000, zongo saiba wrote:
> 
> > Hi all,
> > 
> > Sound is actually giving huge grief in ubuntu 9.10. Main issue with
> > Toshiba Satellite T110: When I connect my external headset to jack, the
> > internal speakers are not muted. I  know this has been already discussed
> > and obviously their seems to be no fix at all. As far as I have noted on
> > Google, this bug has been around for quite a while. May I add that I
> > have no issue with sound whatsoever. As much as it is not a system
> > threatening bug, It is one of the most annoying one. Especially when I
> > take my netbook with me in the train and want to listen to some music or
> > even watch a movie..
> 
> Have you tried
> http://newyork.ubuntuforums.org/showthread.php?p=8282852#post8282852 ?
> 
> > uname -r --> 2.6.31-20-generic
> > Unit: Toshiba Satellite T110
> > 
> > Troubleshooting:
> > 
> > - blacklist pcspkr
> > # headset connected to jack
> > options snd-hda-intel model=auto
> > # mute internal speakers when jack connected options snd-hda-intel
> > position_fix=1 model=auto (lenovo) # options snd-hda-intel model=laptotp
> > 
> > Internal speakers still do not mute when headphones are plugged in
> > though.
> > options snd-hda-intel model=3stack does the same at "model=auto", as
> > does
> > options snd-hda-intel position_fix=1 model=auto
> > 
> > cat /proc/asound/card0/codec#* | grep Codec Codec: 

> Conexant CX20582
> > (Pebble)
> > Codec: Intel G45 DEVCTG
> > 
> > I have the latest in alsa drivers and pulse. I have added "asoundconf"
> > to have the opportunity to chose between my internal audio card or pulse
> > audio. All this to no avail.
> > 
> > Unfortunately I cannot go further than what I have done. The reason is,
> > my knowledge of linux is very much limited. I am merely a newbie trying
> > to make his way through.
> > 
> > Would it be that hard to fix that annoying bug ?
> > 
> > To end this discussion, if technically, someone can explain to me that
> > it is not possible to fix that bug, then I am ok with that; but I have a
> > feeling that it is just a matter of putting some hours into developing
> > good drivers (Am I wrong ??). With all the infrastructure Ubuntu has, it
> > should not be an issue. I mean, that is exactly what's wrong with linux.
> > They started with OSS drivers (from what i gather they are still
> > maintained), then drifted to alsa and pulse audio.; Why not stick with
> > something and try to bring it to perfection so people will actually
> > enjoy using Linux and not banging their head with such small matter but
> > hugely annoying.
> > 
> > Could anyone tell if this issue has been fix in the latest release of
> > Ubuntu ?
> > 
> > PS: I know that plugging a usb headset would sort my issue here. I have
> > a plantronics headset but they are huge. I have a netbook and I want
> > mobility most of all. I just bought these new headsets for mobility..If
> > I only knew.. I shelled out 80 £ for them..Very frustrating..
> 
> There are inexpensive and well supported and small USB sound "cards" with 
> normal analogue outputs. Maybe that is a solution for you?
> 
> > Thank you guys for your help.
> > 
> > Zongo
> 
> See https://help.ubuntu.com/community/HdaIntelSoundHowto esp. this link:
> http://www.kernel.org/pub/linux/kernel/people/tiwai/docs/HD-Audio.html .
> 
> So, unfortunately  it's not as easy "as putting some hours into developing
> good drivers". Also, remember it's hard to debug a problem if you don't 
> have the hardware. And there are many many different laptops and 
> notebooks, with subtle differences in sound hardware (and related BIOS 
> isues).
> 
> About OSS: http://en.wikipedia.org/wiki/Open_Sound_System .
> 
> Good luck!
> 
>     -Frans
> 
> 






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