[Realtek ALC888 - Acer 4930G] ALSA test tone not correctly played back

[Qusai Abu Hilal]

 ALSA test tone not correctly played back

Sound does not play back on my Acer aspire 4930G. I Check all my sound setting, but still nothing.

On Ubuntu 10.04 It was Ok, just now I install Ubuntu 10.10 and It did not work well !
No sound at all !.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: alsa-base 1.0.23+dfsg-1ubuntu4
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: kosai 2116 F.... pulseaudio
                      kosai 11058 F.... alsamixer
 /dev/snd/pcmC0D0p: kosai 2116 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xdb300000 irq 48'
   Mixer name : 'Nvidia MCP77/78 HDMI'
   Components : 'HDA:10ec0888,1025013e,00100202 HDA:11c11040,1025013e,00100200 HDA:10de0003,10de0101,00100000'
   Controls : 38
   Simple ctrls : 20
CheckboxSubmission: 37266f90f304a711ee10ffd5c04e58d1
CheckboxSystem: ed86e29ffba809c116a39e33fa9fc45c
Date: Sun Sep 26 17:18:05 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta amd64 (20100901.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en
 LANG=ar_SY.utf8
 SHELL=/bin/bash
SelectedCard: 0 Intel HDA-Intel - HDA Intel
SourcePackage: alsa-driver
Symptom: audio
Title: [Realtek ALC888] ALSA test tone not correctly played back
dmi.bios.date: 06/26/2008
dmi.bios.vendor: Acer
dmi.bios.version: V1.08
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Aspire 4930
dmi.board.vendor: Acer
dmi.board.version: V1.08
dmi.chassis.type: 1
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.08
dmi.modalias: dmi:bvnAcer:bvrV1.08:bd06/26/2008:svnAcer:pnAspire4930:pvrV1.08:rvnAcer:rnAspire4930:rvrV1.08:cvnAcer:ct1:cvrV1.08:
dmi.product.name: Aspire 4930
dmi.product.version: V1.08
dmi.sys.vendor: Acer

[Qusai Abu Hilal (kosai)]

 ALSA test tone not correctly played back

Sound does not play back on my Acer aspire 4930G. I Check all my sound setting, but still nothing.

Me too.

[gbhuvanesh (gbhuvanesh)]

Same problem for me. Sound does not play back on my Acer Aspire 4930 using Ubuntu 10.10.
There is a similar issue Bug #617647 which can be probably merged with this one.

[David Henningsson (diwic)]

I'm unmarking this as an duplicate as it seems like model=auto solves it for 4930 but not for 7736z, so therefore they are different bugs.

[langmarp (langmarpeter)]

same with acer 2930, same card

[langmarp (langmarpeter)]

https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/617647

[gbhuvanesh (gbhuvanesh)]

Hi langmarp, you could try modifying the alsa-base.conf

In terminal, type: sudo nano /etc/modprobe.d/alsa-base.conf

Add the following 2 lines at the end of the file, save and restart.

alias snd-card-0 snd-hda-intel
options snd-hda-intel model=auto

after this change, sound playback now works fine on my Acer 4930 using Ubuntu 10.10. Since you have a different Acer model, your results might vary.

If this doesn't work, try changing the value of model to 'acer' instead of 'auto'.

If nothing works, you might try installing the fix mentioned here

https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/617647/comments/27

Though I did have any success (Acer 4930), folks having Acer 7736G reported positive results after installing the above mentioned fix.

[gbhuvanesh (gbhuvanesh)]

Correction: In the last line of my previous comment, i meant to say that I did *not* have any success with the fix mentioned at

https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/617647/comments/27

[David Henningsson (diwic)]

gbhuvanesh, can you verify that all inputs and outputs are working well with model=auto? If so, I'll ask upstream to remove the quirk for your hardware.

[gbhuvanesh (gbhuvanesh)]

Hi David,

I have attached a zip file containing three output files from the alsa-info script for Acer 4930.

1. output from 10.04 with sound
2. output from 10.10 without sound
3. output from 10.10 with sound : after adding 'options snd-hda-intel model=auto' in alsa-base.conf

After adding model=auto in 10.10, I have verified that the internal speakers, headphone output and internal microphone work fine.
I cant verify line-in, HDMI out etc. as I don't have the required accessories right right now.

Some other observations:

1) As mentioned in comment#23 of Bug #617647 ,
alsamixer reports a different chip in 10.10 vs. 10.04.

10.10 Card: HDA Intel Chip: Intel Cantiga HDMI (Sound doesn't work)
10.04 Card: HDA Intel Chip: Intel G45 (Sound works)

2) Sound preferences --> Hardware --> Profile

10.10 : shows analog Stereo, digital stereo input and output, 5.1 Channel Surround output
10.10 (with model=auto) : shows analog Stereo, digital stereo input and output
10.04 : shows analog Stereo, digital stereo input and output

Let me know if you need any further information.

[brian duncan (b-g-duncan)]

I have an Acer 7736Z and i have the same problem, 10.04 worked ok except the headphones issue. but now with 10.10 i am completely out of sound. i have tried every different configuration in sound preferences.

[David Henningsson (diwic)]

@brian, you're likely suffering from bug #617647

[kiranprasain (pranain-k)]

alias snd-card-0 snd-hda-intel
options snd-hda-intel model=auto

these two lines really worked in acer 4930 thanks to the gbhuvanesh.i really appreciate ur good job.

[David Henningsson (diwic)]

Sent patch upstream, cc stable 2.6.35+.

[David Henningsson (diwic)]

Sorry about the delay; I must have lost this bug somewhere in the ever streaming list of bugs.

[David Henningsson (diwic)]

Now fixed in Natty

[devesh (dnagvekar)]

http://www.alsa-project.org/db/?f=27bed97f6db8e7274d56dde17bfe20135eda0c75