kernel-packages team mailing list archive

[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1203520

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

** Tags added: precise

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1203520

Title:
  snd_hda_codec_hdmi (via pavucontrol or applications playing sound)
  freezes Ubuntu 12.04 LTS

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Ubuntu 12.04 LTS Precise Pangolin freezes most of the time when trying
  to use HDMI audio (in particular from google-talkplugin, mplayer, vdr-
  sxfe, vlc, xine) up to and including the current Kernel 3.2.0-49
  without putting snd_hda_codec_hdmi on the /etc/modprobe.d/blacklist-
  oss.conf (thereby losing sound over the Nvidia outputs).

  Invoking pavucontrol with  snd_hda_codec_hdmi loaded almost always
  results in a crash that makes even Ctrl-Alt-SysRq inaccessible.

  Freezes also occurred with both hw and plughw devices of the Nvidia
  HDMIs under ALSA when pulseaudio had been uninstalled for testing.

  According to
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1173769 #3 there
  is "a kernel issue which most likely is to happen with Nvidia
  graphics", this is also not fixed by using https://code.launchpad.net
  /~ubuntu-audio-dev/+archive/alsa-daily/+files/oem-audio-hda-daily-
  dkms_0.201307180553%7Eprecise1_all.deb according to
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1169984 #16.

  New bug as identified by David Henningsson (diwic) to have different
  causes than https://bugs.launchpad.net/ubuntu-desktop-
  tests/+bug/1169984 at #119 et seq.

  Blacklisting is the supposed fix in
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181616 and
  http://lists.debian.org/debian-kernel/2012/05/msg00110.html but not
  the solution if HDMI audio is needed.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1203520/+subscriptions