HDMI Sound Dead

[lidex]

OK. Let's try to get back to defaults. Do this for me please.

sudo apt-get update
sudo apt-get upgrade
sudo update-grub

rm -r ~/.pulse ~/.asound* 
sudo rm /etc/asound.conf

Reboot into latest kernel and re-install alsa:

sudo apt-get purge linux-sound-base alsa-base alsa-utils

sudo apt-get install linux-sound-base alsa-base alsa-utils gdm ubuntu-desktop

*gdm and ubuntu-desktop usually get taken out in the process, so we add them back*
Reboot.

With new config run the alsa-info script. Right-click the alsa-info script link in my sig and "save as" to your user folder. Then run this command in a terminal:

sudo bash utils_alsa-info.sh

Enter your user password when prompted. Provide a link for the output or post it here using code tags.

[jda8818]

the good news first: Analog sound is back! Including flash in Firefox.

The strange news: Despite update, upgrade, my latest kernel is -22 (but it is working and not crashing) I guess this is actually more good news.

the bad news: Intel HDMI sound card devices are not recognized (aplay -l).

jadcock@HTPC:~$ sudo bash utils_alsa-info.sh
ALSA Information Script v 0.4.59
--------------------------------

This script visits the following commands/files to collect diagnostic
information about your ALSA installation and sound related hardware.

  dmesg
  lspci
  lsmod
  aplay
  amixer
  alsactl
  /proc/asound/
  /sys/class/sound/
  ~/.asoundrc (etc.)

See 'utils_alsa-info.sh --help' for command line options.

Automatically upload ALSA information to www.alsa-project.org? [y/N] : y
Uploading information to www.alsa-project.org ...  Done!

Your ALSA information is located at http://www.alsa-project.org/db/?f=fd53d412bbc4dade17dfc092537a25e161dbb60a

Please inform the person helping you.

jadcock@HTPC:~$

Thanks, Lidex.

Hope to hear from you soon

JA

[lidex]

This line from alsa-info:

[   14.385395] hda_codec: ALC888: BIOS auto-probing.

tells us we need to add a model name to alsa-base.conf

These I would like to see at 1.0.23 for all:

!ALSA Version
!!------------
Driver version:     1.0.23
Library version:    1.0.23
Utilities version:  1.0.22

That would require you to rerun the alsa-upgrade script, which probably should be done anyway since we reset you to defaults.

In the modules section, I do not see the hdmi module loaded. It must have been loading previously as the hdmi devices were recognized earlier.

Try this:

sudo modprobe snd-hda-codec-intelhdmi

Now this:

aplay -l

[jda8818]

Good Morning Lidex,

I'm unsure as to what model name to add to alsa-base.conf

Other than that, I re-ran the AlsaUpgrade script, and the

sudo modprobe snd-hda-codec-intelhdmi

command.

aplay -l is unchanged, that is to say the hdmi devices are still not loaded/recognized.

Comments or suggestions are always appreciated!

JA

[lidex]

Did you recently change/update your video driver?

[jda8818]

Bingo!

jadcock@HTPC:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC888 Digital [ALC888 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 3: INTEL HDMI 0 [INTEL HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 7: INTEL HDMI 1 [INTEL HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
jadcock@HTPC:~$

The "BIOS auto-probing" message prompted me too reset my bios to it's default values, come to think of it i had to set the bios date and time after the crash that prompted this thread ... (i was prompted to do so). so somehow the bios was disrupted.

anyway, all is well except audio in flash, which i suppose is because we wiped out the asound.conf file earlier in this thread. I will re-create and post.

Thanks so much for your patience and help, Lidex!

JA

[lidex]

What kind of crash could you have that would affect the bios? Tell me you were using windows.

[jda8818]

Nope, notihing on this machine except Ubuntu 10.04 ...

but i may have a hardware problem of some sort. if so, it is very intermittent. the old story, "if it ain't broke, i can't fix it" applies in this case. nothing to do but keep going.

JA

[jda8818]

OK, i re-created the etc/asound.conf file and rebooted, EVERYTHING works.

Thanks Lidex, hopefully I'll be able to leave you to your other devices (at least for a while).

JA

Footnote: this is a completely new system, Ubuntu 10.04 is the only OS ever installed on this hard drive. Absolutely no quirky behavior prior to this thread. And seemingly stable now.

[lidex]

You must have disabled hdmi in the bios. That would explain why it wasn't recognized. All is good now though. Just remember next time you have a problem to report everything that happened or was changed prior to the issue no matter how unrelated it may seem. Good Luck