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Old 11-11-2011, 08:45 PM
Jonathan Nieder
 
Default Bug#648466: sound crackles when typing or using trackpad

reopen 648466
quit

Ben Hutchings wrote:

> This report did not state any problem.

It was a follow-up to an existing report to include bugscript output
(for the future: Stefan, sending as an attachment and using the email
body as a place to put explanatory text can help). Sorry for the
confusion.



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Old 11-11-2011, 09:02 PM
Jonathan Nieder
 
Default Bug#648466: sound crackles when typing or using trackpad

found 648466 linux-2.6/3.0.0-5
tags 648466 - moreinfo
quit

Steffen Hoenig wrote:

> [ 13.256571] i2c i2c-0: PMac Keywest Audio: attach_adapter method is deprecated
> [ 13.263656] i2c i2c-0: Please use another way to instantiate your i2c_client

Interesting, but sounds harmless.

> ** Model information
> revision : 3.2 (pvr 8001 0302)
> platform : PowerMac
> model : PowerBook3,5
> machine : PowerBook3,5
> motherboard : PowerBook3,5 MacRISC2 MacRISC Power Macintosh

Thanks.

> snd_aoa_i2sbus 19872 0
> snd_pcm 64222 3 snd_powermac,snd_aoa_i2sbus
> snd_page_alloc 8957 1 snd_pcm
> snd 50534 10 snd_powermac,snd_aoa_i2sbus,snd_pcm,snd_seq,snd_ti mer,snd_seq_device
> snd_aoa_soundbus 6653 1 snd_aoa_i2sbus

Ok, this is the AOA (Apple Onboard Audio) ALSA driver. No obviously
relevant changes since v3.0 upstream. Good.

Let's take this upstream. Please send:

- a summary of the problem and a quick way to reproduce it (e.g.,
does playing a CD and moving the touchpad always produce crackle?)

- information about when it started and the version number of the
oldest kernel you were able to reproduce it with

- if this was a regression, the version number of the newest kernel
you were able not to reproduce it with

- any other weird observations

- output from the alsa-info.sh script[1], as an attachment

to linuxppc-dev@lists.ozlabs.org, cc-ing alsa-devel@alsa-project.org,
and me or this bug log so we can track the resulting discussion.

Thanks for your quick answers, and hope that helps.
Jonathan

[1] http://git.alsa-project.org/?p=alsa-driver.git;a=blob_plain;f=utils/alsa-info.sh



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Old 12-05-2011, 02:35 AM
Jonathan Nieder
 
Default Bug#648466: sound crackles when typing or using trackpad

Петр метель wrote:

> Kernel 3.1.0 compiled from source also produce errors.

I assume you mean that sound crackles when listening to music with cmus
or mplayer, and that it gets worse while typing or using the touchpad,
whereas an an external USB attached mouse does not exhibit the same
trouble?

In that case, please see [1] and follow the directions there.

Thanks much, and hope that helps,
Jonathan

[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=36;bug=648466



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