Ubuntu

No sound after upgrade to Intrepid

Asked by Paul Hambleton

I upgraded a working Hardy Heron 8.04 system to Intrepid 8.10 on its release last week. After the upgrade everything including sound playback worked except my microphone which remains muted in the volume control no matter how many times I un-muted it. I believe this is a known bug.
On the weekend, a batch of Intrepid updates were released including a new kernel 2.6.27-7-generic
After applying these updates, sound playback was very distorted and choppy and I tried many re-installs of ALSA, ALSA drivers, PulseAudio etc. as suggested by many users online all to no avail.
At some point, the sound stopped working altogether and it appears to be because the driver is not loaded. If I re-boot with an old kernel, it works but is still choppy. I have tried dozens of cures suggested online again to no avail.
Here is some information that I have gathered:
$ lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
$
$ aplay -l
aplay: device_list:204: no soundcards found...
$

In "/lib/modules/2.6.27-7-generic/kernel/sound" there is no "pci" directory like there is in the older kernel directories. Why is this? How can I get Ubuntu 8.10 to re-create this obviously missing directory and the sub-directory "hda" which contains the file "snd-hda-intel.ko"?

I am at my wit's end wth this problem. My system is otherwise working just how I want it and I don't want to do a complete re-install just to make the sound work if I can avoid it. In the meantime, Skpe etc. are of course useless.

I have often had sound problems with previous releases (the Intel HDA card seems to be an ongoing issue with Ubuntu) but I have always been able to resolve them. This time I'm stumped. Please help.
PH.

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Lloyd (lwcary-deactivatedaccount) said : 		#1

 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 After upgrading to Ubuntu 8.10, I could get NO sound whatever in GNOME! I could however get VERY FANT sound in KDE's Kubuntu desktop. My sound was unaffected in my Windows XP Pro partition. I tried several online suggested "cures," all to none effect.

  I would surely appreciate any help here. Thanks in advance, B-)

   All the best,

   Lloyd

 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Raph9206 (raphael-precigout) said : 		#2

Same kind of problem... I installed Ubuntu 8.10 on a laptop and I have no sound at all.
$ lspci |grep Audio
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
$ aplay -l
aplay: device_list:215: aucune carte son trouvée...
$ cat /proc/asound/cards
--- no soundcards ---

When running the 8.04 live CD on the same laptop (boot on CD and choose try ubuntu...) I have sound (headphones but none to the internal speakers) and the same commands show the following:
$ lspci |grep Audio
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
$ aplay -l
**** Liste des PLAYBACK périphériques ****
carte 0: Intel [HDA Intel], périphérique 0 : ALC883 Analog [ALC883 Analog]
  Sous-périphériques: 1/1
  Sous-périphériques: #0: subdevice #0
carte 0: Intel [HDA Intel], périphérique 1 : ALC883 Digital [ALC883 Digital]
  Sous-périphériques: 1/1
  Sous-périphériques: #0: subdevice #0
carte 0: Intel [HDA Intel], périphérique 4 : ALC268 Analog [ALC268 Analog]
  Sous-périphériques: 1/1
  Sous-périphériques: #0: subdevice #0

Does anybody has an idea ?
Thanks to all

Revision history for this message
Raph9206 (raphael-precigout) said : 		#3

I didn't find any way to let ALSA work correctly on my laptop (Medion MIM2280), even through the last ALSA release compilation. I gave up with ALSA stuff any switched to OSS and succeeded (see https://help.ubuntu.com/community/OpenSound). I now have sound with both internal speakers and headphones.

thanks to all and good luck with ALSA

Revision history for this message
Paul Hambleton (phambleton-deactivatedaccount) said : 		#4

I finally admitted defeat and did a complete re-installation of Intrepid 8.10 and got sound back. However, I still have the microphone problem. When the updates to libasound2-plugins were installed, the microphone began working sort of.
The volume is extremely low to the point where it is useless still.
I'm using Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
What should I do about the microphone?
I don't feel comfortable with changing to OSS.

Revision history for this message
marcobra (Marco Braida) (marcobra) said : 		#5

Double click on top right loudspeaker go to the [ Switches ] tab and tick the Mic Boost (+20dB) check box...

Hope this helps

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Paul Hambleton (phambleton-deactivatedaccount) said : 		#6

Hi marcobra,
There is no Mic Boost check box under the [Switches] tab on my system. In preferences, there are only options to add IEC958, IEC958 Capture and IEC958 Default PCM check boxes to the already visible Headphones check box. There is no option to add a Mic Boost check box. Is there something I haven't installed perhaps?
Thanks.

Revision history for this message
marcobra (Marco Braida) (marcobra) said : 		#7

Please try to push on the "Preferences" button on bottom right of the sound properties window ( the window that's open when you click on the top left loudspeaker).
And add (tick) all controls...

Hope this helps

Revision history for this message
Paul Hambleton (phambleton-deactivatedaccount) said : 		#8

When I check all the control options, I do get slider controls for Microphone and Mic Boost under the Playback tab but still no Mic Boost checkbox under the Switches tab.

Revision history for this message
marcobra (Marco Braida) (marcobra) said : 		#9

Have you also tried to change the device... using the top listbox...?

Thank you

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Paul Hambleton (phambleton-deactivatedaccount) said : 		#10

The devices listed are: HDA Intel (Alsa mixer) which is the device I'm trying to use.
SAA7134 (Alsa mixer) which only has a Playback tab
Realtek ALC888 (OSS Mixer) which only has a Playback tab
Playback: ALSA PCM on front (ALC888 Analog) via DMA (Pulseaudio) which only has a Playback tab
Capture: ALSA PCM on hw:1 )SAA7134 PCM) via DMA (Pulseaudio) which only has a Recording tab
Capture: Monitor Source of ALSA PCM on front:0 (ALC888 Analog) which only has a Recording tab
and
Capture: ALSA PCM on front:0 (ALC888 Analog) via DMA (Pulseaudio) which also only has a Recording tab

Only the HDA Intel (Alsa mixer) has a switches tab.

Revision history for this message
goto (gotolaunchpad) said : 		#11

Does any help in
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/288039
help you?

Revision history for this message
Meena Bansal (meena) said : 		#12

---snip---
 marcobra said on 2008-11-15:

Please try to push on the "Preferences" button on bottom right of the sound properties window ( the window that's open when you click on the top left loudspeaker).
And add (tick) all controls...

Hope this helps
---snip---

This worked for me. Thanks :)

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