Arch Linux

pyarch

Member

Registered: 2011-09-30

Posts: 169

Redlight appearing from headphone jack[SOLVED]

Hi everyone,
I have a problem. Everytime I start the NetworkManager, a red light appears from the headphone jack of my laptop ! How do  I resolve this issue ?
Thanks
Let me know if any info is needed from my end

Last edited by pyarch (2011-10-17 17:18:45)

ngoonee

Forum Fellow

From: Between Thailand and Singapore

Registered: 2009-03-17

Posts: 7,356

Re: Redlight appearing from headphone jack[SOLVED]

Let me know if any info is needed from my end

You're not giving any info at all, in the first place. What laptop, does this happen on other distros/OS?

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pyarch

Member

Registered: 2011-09-30

Posts: 169

Re: Redlight appearing from headphone jack[SOLVED]

Let me know if any info is needed from my end

You're not giving any info at all, in the first place. What laptop, does this happen on other distros/OS?

Lenovo y470. uhm.. well I got this laptop like just a month ago and I installed/tried only Archlinux.
When I start archlinux the redlight doesn't appear but when start NetworkManager, a redlight appears from the headphone jacket.
To be more precise
When the i login to archlinux, if I have "NetworkManager" in my rc.conf or when I start it from the command line I immediately see the red light appearing from the headphone jack !

Last edited by pyarch (2011-10-11 16:30:03)

kokoko3k

Member

Registered: 2008-11-14

Posts: 2,402

Re: Redlight appearing from headphone jack[SOLVED]

That redlight is an optical/digital audio output, i don't know why networkmanager has this effect, but i don't think you have to worry about.

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stqn

Member

Registered: 2010-03-19

Posts: 1,191

Website

Re: Redlight appearing from headphone jack[SOLVED]

If I'm not mistaken, modem and audio chips are often the same... Maybe NetworkManager is somehow loading the modem driver, which in turn activates optical audio? Sounds a bit weird, but that's all I can think of .

Cilph

Member

Registered: 2011-05-01

Posts: 29

Re: Redlight appearing from headphone jack[SOLVED]

Does S/PDIF come out of 3.5mm jacks often or is that just a way of saving space?

pyarch

Member

Registered: 2011-09-30

Posts: 169

Re: Redlight appearing from headphone jack[SOLVED]

and another funny thing ... when I mute the volume the redlight disappears and when I increase it, the red light reappears !!!
On google-ing I found that this has something to do with the audio drivers.
How do I know what audio drivers to install ?

stqn

Member

Registered: 2010-03-19

Posts: 1,191

Website

Re: Redlight appearing from headphone jack[SOLVED]

I would try not to install but to blacklist the modem and/or spdif driver. See if you can find something in "lsmod | grep snd" that looks like it...

Alternatively, look at the wiki: https://wiki.archlinux.org/index.php/Ad … DIF_Output
It explains how to enable S/PDIF...

I also found something that might apply to your laptop at http://http.download.nvidia.com/XFree86 … -0261.html:

nvaudio Module Parameters
The nForce audio driver supports the following optional parameters:
1. spdif_status
spdif_status
The "spdif_status" module parameter is used to enable or disable S/PDIF support in the driver. By default S/PDIF is enabled, but can be disabled by setting spdif_status to 0.

pyarch

Member

Registered: 2011-09-30

Posts: 169

Re: Redlight appearing from headphone jack[SOLVED]

this is the result of lsmod | grep snd

snd_hda_codec_hdmi     22092  1 
snd_hda_codec_realtek   294320  1 
snd_hda_intel          22122  2 
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                73952  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_timer              19416  1 snd_pcm
snd                    57818  11 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore               6146  1 snd
snd_page_alloc          7121  2 snd_hda_intel,snd_pcm

pyarch

Member

Registered: 2011-09-30

Posts: 169

Re: Redlight appearing from headphone jack[SOLVED]

sorry for the "bump"