Arch Linux

diegoauyon

Member

From: Guatemala

Registered: 2011-08-08

Posts: 14

Sound - Change input line to output line

Hi to everyone I just have a question.

It is possible to change the input line to output to have an stereo output?

I use pulseaudio. My sound works great. Even when I connect earphones, the audio of my laptop speakers go off. But I have an amplifier (5.1 channels) and I want to connect my laptop to it. (I use Windows too, and it use the realtek software to change the input line to output) I'm really a total newbie with everything related to sound (I apologize for that), but I even didn't found the answer in the wiki (or there is no answer over there or I really didn't understand).

Thanks in advance for any help,  I will continue searching for the answer and posting in here if I succeed.

what lsmod|grep '^snd' | column -t gave me:

snd_hda_codec_hdmi     22092   1
snd_hda_codec_realtek  294224  1
snd_hda_intel          22122   1
snd_hda_codec          77927   3  snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep              6325    1  snd_hda_codec
snd_pcm                73856   3  snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_timer              19416   1  snd_pcm
snd                    57786   9  snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
snd_page_alloc         7089    2  snd_hda_intel,snd_pcm

what ls -l /dev/snd gave me:

total 0
drwxr-xr-x  2 root root       60 Aug 21 15:01 by-path/
crw-rw----+ 1 root audio 116,  7 Aug 21 15:01 controlC0
crw-rw----+ 1 root audio 116,  6 Aug 21 15:01 hwC0D0
crw-rw----+ 1 root audio 116,  5 Aug 21 15:01 hwC0D3
crw-rw----+ 1 root audio 116,  4 Aug 21 15:01 pcmC0D0c
crw-rw----+ 1 root audio 116,  3 Aug 21 15:01 pcmC0D0p
crw-rw----+ 1 root audio 116,  2 Aug 21 15:01 pcmC0D3p
crw-rw----  1 root audio 116,  1 Aug 21 15:01 seq
crw-rw----+ 1 root audio 116, 33 Aug 21 15:01 timer

what aplay -l gave me:

**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC270 Analog [ALC270 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Thanks in advance for any help you could provide me. I will keep searching for an answer

P.D If it is possible, then it is possible to use the laptop speaker, input and output line to sound? (3 channels for that, it would be an 7.1 channels)