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On 2009-10-05T18:37:50+00:00 Lennart wrote:

Quite a few HDA (and other sound cards) are known to make faint "plopp"
or other noises when powering down/up. For some cards these noises can
be suppressed in software, however for others this appears not to be
possible (according to some HDA driver devs at least, as discussed a
Plumbers conf). It would be nice if we could have a blacklist in the
kernel that makes sure power saving is only enabled for those where this
plopp sound is known to not exist.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/19

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On 2009-10-05T18:40:46+00:00 Lennart wrote:

As a side note: OpenSuse disables all power management for sound cards
on power plug/unplug via a script in/usr/lib/pm-utils/power.d/sound-pm.
mjg59 thinks this is not a good idea we should follow, saying that what
isn't acceptable in AC mode isn't acceptable in battery mode either. And
I guess I agree.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/20

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On 2009-10-06T08:02:52+00:00 Chuck wrote:

But where is that list? Every release we try to enable the power savings
and each time we end up disabling it.

Also, I've got a machine that turns the speaker LED orange to indicated
the sound is muted.... and that happens when we turn off the power to
the card even though we're not really muted.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/21

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On 2009-11-16T13:16:40+00:00 Bug wrote:


This bug appears to have been reported against 'rawhide' during the Fedora 12 
development cycle.
Changing version to '12'.

More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/52

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On 2009-11-24T13:21:29+00:00 Jaroslav wrote:

I would prefer an user space solution for this problem. Any default
behaviour is not ideal in this case, because:

a) if this function is off - it might be obsolete with new HDA driver code
b) if this function is on - cracks on hw on/off

Perhaps, a mixer control like "Power Save" might be introduced, so users
can touch this behaviour in a GUI.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/55

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On 2009-12-17T15:42:34+00:00 Lennart wrote:

(In reply to comment #4)
> Perhaps, a mixer control like "Power Save" might be introduced, so users can
> touch this behaviour in a GUI.  

Uh, I dont think forwarding this problem to the user really brings us
forward.

We could add a couple of rules for this udev. I am pretty sure I can
convince Kay to accept rules into udev for this, although this looks a
like a lot of work to maintain...

Alternatively this could be maintained as part of the alsa mixer init
db?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/61

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On 2009-12-17T15:43:49+00:00 Lennart wrote:

*** Bug 548123 has been marked as a duplicate of this bug. ***

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/62

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On 2010-01-05T12:22:08+00:00 Michal wrote:

*** Bug 539304 has been marked as a duplicate of this bug. ***

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/66

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On 2010-01-05T12:35:23+00:00 Michal wrote:

This issue is listed as one of the Common F12 bugs:
https://fedoraproject.org/wiki/Common_F12_bugs#hda-clicks

In the absence of a list of known good/bad models we really should
default to the safe choice (e.g. disable powersaving).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/67

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On 2010-01-18T17:26:41+00:00 Alex wrote:

echo 0 > /sys/module/snd_hda_intel/parameters/power_save  first helped
but when I change volume sound crackling again! only volume at %100 no
crackling. Any clue ?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/69

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On 2010-02-12T22:09:30+00:00 Christopher wrote:

F13 Beta Blocker criterion 14 says: "In most cases, the installed system
must be able to play back sound with gstreamer-based applications".
This bug isn't exactly "sound doesn't work at all" but it is listed on
Common Bugs and is apparently fairly visible.  Nominating as F13Target.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/71

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On 2010-02-13T07:50:40+00:00 Michal wrote:

Since kernel builds around 2.6.32.3 HDA powersaving has been disabled by
default (CONFIG_SND_HDA_POWER_SAVE_DEFAULT=0) in both F-12 and devel
branches.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/72

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On 2012-09-15T20:59:49+00:00 nucleo wrote:

SND_HDA powersaving defaults can be changed for kernels in current
(F16+) releases (looks like no plopp sounds here)?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201/comments/88


** Changed in: linux (Fedora)
       Status: Unknown => Fix Released

** Changed in: linux (Fedora)
   Importance: Unknown => Medium

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/381201

Title:
  snd-hda-intel powersave option and "CLICK" from speakers

Status in linux package in Ubuntu:
  Won't Fix
Status in linux package in Fedora:
  Fix Released

Bug description:
  I've got a laptop with
  00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio 
Controller (rev 03)
          S00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD 
Audio Controller (rev 03)
          Subsystem: Dell Device 0233
          Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR+ FastB2B- DisINTx-
          Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
          Latency: 0, Cache Line Size: 64 bytes
          Interrupt: pin A routed to IRQ 21
          Region 0: Memory at f6adc000 (64-bit, non-prefetchable) [size=16K]
          Capabilities: <access denied>
          Kernel driver in use: HDA Intel
          Kernel modules: snd-hda-intelubsystem: Dell Device 0233
          Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR+ FastB2B- DisINTx-
          Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
          Latency: 0, Cache Line Size: 64 bytes
          Interrupt: pin A routed to IRQ 21
          Region 0: Memory at f6adc000 (64-bit, non-prefetchable) [size=16K]
          Capabilities: <access denied>
          Kernel driver in use: HDA Intel
          Kernel modules: snd-hda-intel

  since kernel -6 (but I don't remember the exact version, anyway the update 
was pulled in this week), my sound card once every minute (or better to say 
randomly, I don't understand what triggers it) emits a sound from speakers 
which sounds like 'TOC'.
  I think this sound is caused by the power save options that were enabled in 
the module snd-hda-intel

  This sound also comes out if the volume is mute, or set to 0%

  ProblemType: Bug
  Architecture: amd64
  Date: Thu May 28 09:53:58 2009
  DistroRelease: Ubuntu 9.10
  HibernationDevice: RESUME=UUID=f2f2f06b-2789-4704-8267-388f1e8bc9ca
  MachineType: Dell Inc. Latitude E6400
  Package: linux-image-2.6.30-6-generic 2.6.30-6.7
  ProcCmdLine: root=UUID=0f5f2103-da7b-4e52-ab7f-df158e2f816a ro quiet splash
  ProcEnviron:
   PATH=(custom, user)
   LANG=it_IT.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.30-6.7-generic
  RelatedPackageVersions:
   
  SourcePackage: linux
  Uname: Linux 2.6.30-6-generic x86_64
  dmi.bios.date: 12/17/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A11
  dmi.board.name: 0RX493
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvrA11:bd12/17/2008:svnDellInc.:pnLatitudeE6400:pvr:rvnDellInc.:rn0RX493:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Latitude E6400
  dmi.sys.vendor: Dell Inc.

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