LinuxQuestions.org
LinuxAnswers - the LQ Linux tutorial section.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices

Reply
 
Search this Thread
Old 09-30-2007, 10:07 PM   #1
brigo
LQ Newbie
 
Registered: Feb 2006
Posts: 11

Rep: Reputation: 0
Sound through FRONT jack, No Sound though Speakers


Hello all.
I am running 2.6.18-8.1.10.0.1.el5
(distributed through oracle, based on RHEL5).

This is on an everex(5000T) laptop.

The hardware sound device is realtek alc885. The sound module is snd-hda-intel.

The sound info from lspci and lsmod is below.

The problem is that sound comes through the front headphone/external speaker jack. It does not come through the built in speakers.

I have adjusted and unmuted all controls in alsamixer, amixer.

amixer shows all controls, even speaker, is unmuted and turned up.

Nothing works. The front works fine, so I suspect it has to be a mixer problem somewhere, but where? Is there some way to see what channels are what?
speaker-test -c8 -twav

also plays fine through "front left" and "front right".

Does any one have any advice?

THANK YOU!
Here is some output:

lsmod | grep snd:
snd_hda_intel 21333 3
snd_hda_codec 144321 1 snd_hda_intel
snd_seq_dummy 7877 0
snd_seq_oss 32705 0
snd_seq_midi_event 11073 1 snd_seq_oss
snd_seq 49841 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 11853 3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss 42849 0
snd_mixer_oss 19137 3 snd_pcm_oss
snd_pcm 71621 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_timer 24901 2 snd_seq,snd_pcm
snd 51909 11 snd_hda_intel,snd_hda_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd _timer
soundcore 13217 3 snd
snd_page_alloc 13641 2 snd_hda_intel,snd_pcm


lspci:

00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2)
 
Old 10-02-2007, 08:49 AM   #2
davedave1
LQ Newbie
 
Registered: Jun 2007
Location: Canberra
Distribution: Gentoo, Ubuntu 7, Ubuntu 5
Posts: 17

Rep: Reputation: 0
This sounds like a hardware problem. Are you certain that the speakers work?
 
Old 10-02-2007, 12:47 PM   #3
brigo
LQ Newbie
 
Registered: Feb 2006
Posts: 11

Original Poster
Rep: Reputation: 0
The machine is dual boot with win xp.
The speakers work fine in windows.

I downloaded the newest alsa drivers (1.0.14..).
No change.
I then downloaded the realtek linux audio package. It includes the same version of the alsa drivers.
Still no change - sound is fine through front jack, nothing through built in speakers.

I will try options in the modprobe.conf - perhaps 3stack-dig?

I have been working on this for weeks, and I have noticed that this problem is not uncommon, and no one has a realiable fix.

Advice? Comments?
THANKS to ALL!
 
Old 10-03-2007, 08:56 AM   #4
brigo
LQ Newbie
 
Registered: Feb 2006
Posts: 11

Original Poster
Rep: Reputation: 0
Hello all, again.
For the benefit of anyone searching for an answer, I was able to get the built in speakers working.
For an EVEREX Laptop StepNote XT5000T the modprobe option that worked as:
options snd-hda-intel model=3stack-dig

6stack-dig also worked.

I was not sure where to put the option statement, since I thought I had tried 3stack-dig in /etc/modprobe.conf before. (It may have been just 3stack without the dig, I am not sure).

Anyway, I put that line in the following places:
/etc/modprobe.conf
/etc/modprobe.d/sound
/etc/modprobe.d/alsa-base (I created the file)
/etc/modprobe.d/snd-hda-intel.modprobe (I created that file)

I do not think it needs all those files for RedHat EL5, but I threw the kitchen sink at it.


Right now, the relatively minor problem is that the alsamixer has no Master volume control. I can control all channels with the spearate sliders, but there is no master to lower the volume.

Fortunately, gmplayer's volume control works to do that, but it would be nice to have a master control available from the mixer.

Advice?
Thanks!
 
Old 11-04-2007, 10:12 AM   #5
jasmine.aura
LQ Newbie
 
Registered: Nov 2007
Posts: 3

Rep: Reputation: 0
re: Issues with Alsa on NVidia MCP51 & Realtek ALC885

The latest alsa-driver as of today is 1.0.15

I also have the Everex XT5000T, and have managed to get sound working on both the laptop's "Front" speakers (including built-in "Center" speaker - the sub-woofer) and the headphones, using alsa 1.0.15

There are a few issues still existing however, such as the "PCM" (or master) control issue you reported.
Also the volume control on the "Front", "Center", and "Surround" seem to almost reach mute-level when lowered to only about 50% volume.
The laptop's front panel audio/volume-control dial doesn't seem to work at all either using the alsa driver 1.0.15. Not sure whether this will be fixed in later versions/updates.

I have posted a bug report on alsa-project's bug-tracking system. Feel free to add to it if necessary, or keep an eye on it to be aware of any future updates or fixes to the issues we are having:

Random results with alsa-driver 1.0.15 on NVidia MCP51 HD Audio & Realtek ALC885
https://bugtrack.alsa-project.org/al...ew.php?id=3541
 
Old 11-04-2007, 10:26 AM   #6
jasmine.aura
LQ Newbie
 
Registered: Nov 2007
Posts: 3

Rep: Reputation: 0
The latest alsa-driver as of today is 1.0.15

I also have the Everex XT5000T, and have managed to get sound working on both the laptop's "Front" speakers (including built-in "Center" speaker - the sub-woofer) and the headphones, using alsa 1.0.15

There are a few issues still existing however, such as the "PCM" (or master) control issue you reported.
Also the volume control on the "Front", "Center", and "Surround" seem to almost reach mute-level when lowered to only about 50% volume.
The laptop's front panel audio/volume-control dial doesn't seem to work at all either using the alsa driver 1.0.15. Not sure whether this will be fixed in later versions/updates.

I have posted a bug report on alsa-project's bug-tracking system. Feel free to add to it if necessary, or keep an eye on it to be aware of any future updates or fixes to the issues we are having:

Random results with alsa-driver 1.0.15 on NVidia MCP51 HD Audio & Realtek ALC885
https://bugtrack.alsa-project.org/al...ew.php?id=3541


Moreover, "options snd-hda-intel model=3stack-dig" is the best one to use for now, imho.

If you look at the following ALSA Doc in your kernel sources:
/usr/src/linux/Documentation/sound/alsa/ALSA-Configuration.txt
You'll find a section:
ALC882/885
3stack-dig 3-jack with SPDIF I/O
6stack-dig 6-jack digital with SPDIF I/O

And since the Everex has a 3-jack, you should stick with the "3stack-dig" option.

Cheers
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
No sound in headphone's jack, but I do have sound in Speakers Silverdaz Linux - Newbie 7 09-05-2008 05:12 AM
no sound from speakers or headphone jack in ibm 600e donnyb General 4 03-27-2006 11:37 AM
how to get equal sound level from front and rear speakers with sblive dummy1 Linux - Software 2 11-06-2004 09:46 PM
Sound problem after installing/uninstalling JACK sound server bastupungen Linux - Software 1 02-28-2004 12:50 PM
Sound out Rear but not Front or center speakers garyjm Linux - Hardware 3 09-16-2003 06:58 PM


All times are GMT -5. The time now is 04:22 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration