No sound from speakers (OK through headphones)

[Winfried]

Hello

I'm running LXDE Debian 8.7 on an Asus 1001PXD notebook.

Sound plays fine through headphones but I get no sound through the built-in speakers. Google didn't help so far, and am reluctant to try things for other distros in case I make things worse.

Here's some infos:

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Alsa Mixer just says "Card: PulseAudio" and "Chip: PulseAudio". There are no menus I could open.

# cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xf7cf8000 irq 44
                      
# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

# lshw
Intel NM10/ICH7
https://ubuntuforums.org/showthread.php?t=1802701
*-multimedia
   description: Audio device
   product: NM10/ICH7 Family High Definition Audio Controller
   vendor: Intel Corporation
   physical id: 1b
   bus info: pci@0000:00:1b.0
   version: 02
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list
   configuration: driver=snd_hda_intel latency=0
   resources: irq:44 memory:f7cf8000-f7cfbfff

# cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version k3.16.0-4-amd64.

# head -n 1 /proc/asound/card*/codec#*
Codec: Realtek ALC269VB

# dpkg -l | grep "alsa"
ii  alsa-base                             1.0.27+1                             all          dummy package to ease purging of obsolete conffiles
ii  alsa-utils                            1.0.28-1                             amd64        Utilities for configuring and using ALSA
ii  alsamixergui                          0.9.0rc2-1-9.1                       amd64        graphical soundcard mixer for ALSA soundcard driver
ii  xmms2-plugin-alsa                     0.8+dfsg-12                          amd64        XMMS2 - ALSA output

Any idea what I could try?

Thank you.

--
Edit: Posts on the net seem to say that the issue could come from the fact that this audio chip is incorrectly reported as from Intel while it's actually from Realtek:

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# head -n 1 /proc/asound/card*/codec#*

Codec: Realtek ALC269VB

I also tried creating a .asoundrc file, but still no sound:

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# aplay -L
…
front:CARD=Intel,DEV=0
    HDA Intel, ALC269VB Analog
    Front speakers

# echo 'pcm.!default front:Intel' > ~/.asoundrc

# aplay ./acme.mp3
Playing raw data './acme.mp3' : Unsigned 8 bit, Rate 8000 Hz, Mono
aplay: set_params:1233: Sample format non available
Available formats:
- S16_LE
- S32_LE

[seppalta]

Install gnome-alsamixer:

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sudo apt-get install gnome-alsamixer

. It is lightweight and will not hurt your system. Open it (launcher probably in your audio-video menu category) and make sure everything for your sound card is unmuted. Play with the settings until you get sound.

If unsuccessful with alsa, then try pulse-audio:

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sudo apt-get install pavucontrol pulseaudio pulseaudio-utils 

Open Pulse Audio Volume Control and play with settings until you get sound. See http://lxlinux.com/audio.html for more specifics.