1 |
On Tuesday 29 January 2008, Marzan, Richard non Unisys wrote: |
2 |
> I tried googling around but no helpful content so far. I have a |
3 |
> laptop with built-in sound. It uses the HDA_intel kernel module. My |
4 |
> problem is that I can't silence the onboard/built-in speakers when I |
5 |
> plug in the headphones to the machine. Muting sound would lead to all |
6 |
> jacks and audio ports to be silenced -- not just the built-in |
7 |
> speakers, which I intend to mute solely leaving sound alive on the |
8 |
> headphone jacks. There are no channels readily observable to |
9 |
> differentiate where sound goes and to which port with alsa-mixer. The |
10 |
> behavior I would like to achieve is one that will allow me to mute |
11 |
> onboard speakers while continuing to have the headphones receive |
12 |
> audio signals. Has anyone ever done this? Any pointers to |
13 |
> documentation will be appreciated. |
14 |
|
15 |
Is it a Dell with an ICH8 chipset? This is a well known bug and is fixed |
16 |
in alsa-1.0.15. I have this same problem on my Dell D830 which runs |
17 |
Gentoo and Ubuntu. |
18 |
|
19 |
On Ubuntu I use a backported kernel and |
20 |
'options snd-hda-intel model=dell-m42' in /etc/modprobe.d/alsa-base |
21 |
-- |
22 |
Alan McKinnon |
23 |
alan dot mckinnon at gmail dot com |
24 |
-- |
25 |
gentoo-user@l.g.o mailing list |