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Thread: Speakers weird noise on shutdown

  1. #1
    Join Date
    Sep 2008
    Location
    Europe
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    14

    Question Speakers weird noise on shutdown

    Hi all,

    I a new Linux user (as a sudoer, at least). I just installed Ubuntu 8.04 on my HP Pavillion dv6560el, but I think my problem does not go into the "Installation" thread.
    Everything works fine "out of the box" but I have a rather annoying problem with the soundcard on shutdown (or reboot).
    Basically, a rather loud and weird "pop" sound comes out of my speakers at power off (even if the audio is muted or headphones are plugged in), like when you suddenly remove battery and unplug power cord. This looks all but healthy for my speakers.
    Strange enough, if I hibernate this does not happen: I see my audio control led turning amber (this is not happening on shutdown), and the laptop powering off smoothly.
    How can I achieve the same behavior also on shutdown? I looked around a little bit but probably I am missing the right keywords.
    Could somebody enlighten me? So far the best I could do was to cd into each /etc/rc?.d/ ...

    BTW, my soundcard info are:
    *-multimedia
    description: Audio device
    product: 82801H (ICH8 Family) HD Audio Controller
    vendor: Intel Corporation
    physical id: 1b
    bus info: pci@0000:00:1b.0
    version: 03
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi pciexpress bus_master cap_list
    configuration: driver=HDA Intel latency=0 module=snd_hda_intel

    In the meanwhile I avoid shutting down and I just hibernate, but sometimes it is necessary to reboot...

    Cheers

  2. #2
    Join Date
    Sep 2008
    Location
    Europe
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    14

    Re: Speakers weird noise on shutdown

    It looks like HP sold really a lot of Pavillion dv6560el ... Anyway, I am trying to figure out myself how to solve the problem.

    I found the exact description of my problem at
    https://bugs.launchpad.net/ubuntu/+s...ils/+bug/23984

    I tried to add the magic alsactl power off line in the /etc/init.d/alsa-utils script, and :
    Code:
    $ alsactl power off
    alsactl: Unknown command 'power'...
    Obviously the "power [card #] [state]" command does not exist any more in alsactl...
    I just wonder how to replace it.

  3. #3
    Join Date
    Feb 2007
    Location
    Rome, Italy
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    2,184

    Re: Speakers weird noise on shutdown

    I'd like to bump this thread because i have the same issue with a hp dv5-1005 and an intel soundcard.. is there any news, suggestion or workaround?

    bye
    Luca

  4. #4
    Join Date
    Mar 2008
    Location
    Ireland
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    517

    Re: Speakers weird noise on shutdown

    HP Dv6920 , same issue as well.
    "It is one thing to show a man that he is in an error, and another to put him in possession of the truth." (John Locke)

  5. #5
    Join Date
    Mar 2008
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    Ireland
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    517

    Re: Speakers weird noise on shutdown

    bump
    Last edited by Helios1276; October 30th, 2008 at 01:49 AM.
    "It is one thing to show a man that he is in an error, and another to put him in possession of the truth." (John Locke)

  6. #6
    Join Date
    Apr 2008
    Location
    Kentucky
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    32

    Re: Speakers weird noise on shutdown

    Yeah it is a common issue, however I don't think there is a way to fix it. If there is I'd love to know because I also have an HP with the same issue! It seems that it is a power based issue on shutdown and I don't know if there truly is a way to halt the little surge that generates the pop. Let's hope there is though because that would be great.

  7. #7
    Join Date
    Jun 2008
    Location
    A&M 2011
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    20
    Distro
    Ubuntu 8.10 Intrepid Ibex

    Re: Speakers weird noise on shutdown

    Bump
    Lenovo Y510 | Ubuntu 8.10 | Vista Ultimate | 4gb RAM | 1.83 Core 2 Duo | nVidia 8600m GT

  8. #8
    Join Date
    May 2008
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    1

    Re: Speakers weird noise on shutdown

    Has anyone solve this problem yet?

  9. #9
    Join Date
    Jul 2007
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    Hidden!

    Re: Speakers weird noise on shutdown

    I've got the same problem with an HP dv5t. Not quite sure what the sound card is...I think it's an IDT.

  10. #10
    Join Date
    Nov 2007
    Location
    Hungary
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    1
    Distro
    Ubuntu 8.10 Intrepid Ibex

    Angry Re: Speakers weird noise on shutdown

    Same here with HP Pavilion dv5-1116ez Notebook.

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