Arch Linux

Noobzore

Member

Registered: 2007-09-26

Posts: 15

Conscerning ALSA and headphones sound.

Hi there,

I am having problems getting my sound to work in headphones, and so it will mute the speakers as well. At first the sound worked in my headphones but the speakers would keep playing. Now, i don't even get sound in my headphones. Since then i have tried:

1. Recompiling ALSA drivers with the --with-card=hda-intel option. (no sound in headphones)
2. Setting the model for the snd-hda-intel module to hp, back to auto, and a couple other..basicly random guesses (In each one my sound in speakers still worked no problem but no sound in headphones)
3. Running alsaconf. (and then when that didnt work removing the alsa stuff from modprobe.conf)
4. i tried adding snd-hwdep to my modules list in rc.conf.

I think that's it i might have missed one or two things cause this has been an ongoing project for the passed couple days.

Here are some details on my system.

[root@Box]# lspci |grep Audio
00:07.0 Audio device: nVidia Corporation MCP67 High Definition Audio (rev a1)

[root@Box]# lsmod|grep '^snd'
snd_hda_intel         288032  0 
snd_seq_oss            31360  0 
snd_seq_midi_event      6656  1 snd_seq_oss
snd_seq                47824  4 snd_seq_oss,snd_seq_midi_event
snd_seq_device          7180  2 snd_seq_oss,snd_seq
snd_hwdep               7556  1 snd_hda_intel
snd_pcm_oss            36768  0 
snd_pcm                69380  2 snd_hda_intel,snd_pcm_oss
snd_timer              19332  2 snd_seq,snd_pcm
snd_page_alloc          8328  2 snd_hda_intel,snd_pcm
snd_mixer_oss          14720  1 snd_pcm_oss
snd                    45924  9 snd_hda_intel,snd_seq_oss,snd_seq,snd_seq_device,snd_hwdep,snd_pcm_oss,snd_pcm,snd_timer,snd_mixer_oss

[root@Box]# ls -l /dev/snd/
total 0
crw-rw---- 1 root audio 116,  0 2008-01-08 10:11 controlC0
crw-rw---- 1 root audio 116,  4 2008-01-08 10:11 hwC0D0
crw-rw---- 1 root audio 116, 24 2008-01-08 10:11 pcmC0D0c
crw-rw---- 1 root audio 116, 16 2008-01-08 10:11 pcmC0D0p
crw-rw---- 1 root audio 116, 17 2008-01-08 10:11 pcmC0D1p
crw-rw---- 1 root audio 116,  1 2008-01-08 01:37 seq
crw-rw---- 1 root audio 116, 33 2008-01-08 01:37 timer

My modprobe.conf file has no alsa stuff in it currently and if there is any other information i can provide i will be more than happy to do so. Oh, it is a dv9000 series HP laptop. specifically, a "dv9628nr".

Thanks in advance,
-hyshka

PS. anyone know of a way to implement video scaling in linux? i used to run vista when i first got the laptop and there was simply an option in the nvidia control panel about it. Basicly, because this is a widescreen laptop i need it to add those "black spaces" on each side when i run games at 4:3 resolutions. My laptop's screen has a 16:10 ratio.

elliott

Member

Registered: 2006-03-07

Posts: 296

Re: Conscerning ALSA and headphones sound.

PS. anyone know of a way to implement video scaling in linux? i used to run vista when i first got the laptop and there was simply an option in the nvidia control panel about it. Basicly, because this is a widescreen laptop i need it to add those "black spaces" on each side when i run games at 4:3 resolutions. My laptop's screen has a 16:10 ratio.

I assume you are running the official Nvidia drivers. Do you have a screen like this in nvidia-settings?

I would think the 'Centered" option would do what you want.

Noobzore

Member

Registered: 2007-09-26

Posts: 15

Re: Conscerning ALSA and headphones sound.

thanks elliott. i didnt realize there was such a program available.

i still need help with my audio problem though. hopefully somebody has some suggestions.

-hyshka

elliott

Member

Registered: 2006-03-07

Posts: 296

Re: Conscerning ALSA and headphones sound.

Have you tried "options snd-hda-intel model=laptop" in modprobe.conf? Also if you have a headphone channel in alsamixer, make sure it is unmuted.

Noobzore

Member

Registered: 2007-09-26

Posts: 15

Re: Conscerning ALSA and headphones sound.

Awesome! Now when i plug in headphones it mutes the speakers and plays the headphones. That's perfect, thank you very much.

-hyshka