touch-packages team mailing list archive

[Paul Konecny <paul@xxxxxxxxxx>]

I just tried a 15.04 daily and I still get 
[ 1013.617302] snd_hda_intel 0000:03:00.1: Enabling via VGA-switcheroo
[ 1018.648871] snd_hda_intel 0000:03:00.1: Disabling via VGA-switcheroo
[ 1018.680852] snd_hda_intel 0000:03:00.1: Cannot lock devices!
Is there any difference in the Arch and Ubuntu Kernel that you guys know of, that could cause this "Cannot lock devices"?

Although: 
Strangely sound seems to be unaffected this time.
I enabled the pcspkr driver in modprobe because when I blacklisted it on arch I ran into the same issue.
So maybe enabling the beep in the driver would help?

Another difference in Arch is, that the AMD card although enabled, does
not show up in the the available master channels in the Pulseaudio
setting. Further testing revealed that the HDMI / DP Audio is not wired
to the AMD sound chip. So disabling it via modprobe with 1,1,0 should
leave the Intel DP output running for HDMI audio. (You just have to
switch vlc to another audio device).

I hope this helps. 
Cheers!

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1310260

Title:
  Pulseaudio fails to detect card (probably due to hybrid graphics)

Status in alsa-driver package in Ubuntu:
  Triaged

Bug description:
  Hi,
  I wanted to install Trusty on my Elitebook 850 G1 with hybrid graphics (Intel / AMD) but pulseaudio goes nuts on me as soon as I try to play any music / sound, try to change volume, etc.
  I've tried it with Ubuntu, Kubuntu and now with Xubuntu with the same result everytime.

  My guess is that pulseaudio has problems with the AMD GPU and it's sound processor being switched off automatically as enabled by Kernel 3.13 (formerly achieved by adding the radeon.runpm=1 kernel parameter)
  (http://lists.freedesktop.org/archives/dri-devel/2013-September/045650.html)

  root@HP-EliteBook-850-G1:~# cat /sys/kernel/debug/vgaswitcheroo/switch
  0:IGD:+:Pwr:0000:00:02.0
  1:DIS: :DynOff:0000:03:00.0
  2:DIS-Audio: :Off:0000:03:00.1

  As you can see, the AMD GPU has been turned off automatically. Pulseaudio, the (X)Ubuntu volume applet and KMix on the other hand list it as still available.
  Based on that I asume pulseaudio tries to access a switched-off device and fails.

  I've followed the steps listed
  here: https://wiki.ubuntu.com/DebuggingSoundProblems
  and
  here: https://wiki.ubuntu.com/PulseAudio/Log

  I'll attach the logs right away. (pulseverbose1.log and my dmesg
  output)

  Pusleverbose is full of messages like this one:
  (   0.013|   0.000) I: [pulseaudio] alsa-util.c: Error opening PCM device hw:0: No such file or directory

  This output of dmesg also caught my attention:
  [  354.927935] HDMI ATI/AMD: no speaker allocation for ELD
  [  357.695010] hda-intel 0000:03:00.1: Disabling via VGA-switcheroo

  One thing I noticed using Kubuntu is that after pulseaudio becomes unresponsive the taskmanager lists 4 pulseaudio processes two of which are "active on harddrive" ("Aktiv auf Festplatte"). Those two processes cannot be killed even as root.
  Currently being on Xubuntu the same thing is true, although it lists only one process in the taskmanager that cannot be killed.

  I hope you can help me.

  Best regards,
  Paul

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: pulseaudio 1:4.0-0ubuntu11
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC2', '/dev/snd/hwC2D0', '/dev/snd/pcmC2D3p', '/dev/snd/pcmC2D7p', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/pcmC1D2c', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D8p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CurrentDesktop: XFCE
  Date: Sun Apr 20 13:47:09 2014
  InstallationDate: Installed on 2014-04-20 (0 days ago)
  InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  SourcePackage: pulseaudio
  Symptom: audio
  Symptom_Card: HDA-Intel - HDA Intel PCH
  Symptom_Jack: Speaker, Internal
  Title: [HP EliteBook 850 G1, IDT 92HD91BXX, Speaker, Internal] Pulseaudio fails to detect card
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/19/2014
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L71 Ver. 01.08
  dmi.board.name: 198F
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 15.54
  dmi.chassis.asset.tag: CNU345BY96
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL71Ver.01.08:bd02/19/2014:svnHewlett-Packard:pnHPEliteBook850G1:pvrA3008CC10003:rvnHewlett-Packard:rn198F:rvrKBCVersion15.54:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP EliteBook 850 G1
  dmi.product.version: A3008CC10003
  dmi.sys.vendor: Hewlett-Packard

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1310260/+subscriptions