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Thread: Weird noise at shutdown or reboot

  1. #1
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    Exclamation Weird noise at shutdown or reboot

    Whenever I reboot or shut down my computer (running OpenSuse 11.2 on a Dell Studio 15), it makes a weird noise that sounds like very loud static, even if my sound was muted when I selected shut down. Any idea what this is, or how to fix it?

  2. #2
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    Question Re: Weird noise at shutdown or reboot

    Do you have external speakers connected and did you turn off the speakers or unplug the power adapter? I get a big thump from my sub when I turn off my computer, but nothing on a reboot. Tell us more about your version of SuSE, desktop you use, kind of speakers and we assume you are using built-in sound from your Dell.

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  3. #3
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    Default Re: Weird noise at shutdown or reboot

    I'm not using any external speakers, running OpenSuse 11.2 (kernel 2.6.31.12-0.2-debug) with a Radeon HD 34xx Series sound card using driver "snd-hda-intel".

    The only way I've found to get around the noise is to log out first, and then shut down / reboot. For some reason that works just fine.

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    Default Re: Weird noise at shutdown or reboot

    Your laptop is well documented here
    HCL/Laptops/Dell - openSUSE

    I think one of our Moderators has one. Perhaps he will have an idea.
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  5. #5
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    Default Re: Weird noise at shutdown or reboot

    I'm beginning to think that the noise is actually the system halt noise. Is there a setting for "halt noise at shutdown", or is this just a bug somewhere in my system?

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    Default Re: Weird noise at shutdown or reboot

    It must be coming from the motherboard microphone, which you can pull the plug on
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  7. #7
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    Default Re: Weird noise at shutdown or reboot

    KDE or gnome?

    In KDE Personal Settings then Notifications to change the sound. It could be that the sound file used is corrupted.

    I Gnome I don't know. Something like that above.

  8. #8
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    Default Re: Weird noise at shutdown or reboot

    Does OpenSuse normally have a noise that plays when the computer is shut down?

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    Default Re: Weird noise at shutdown or reboot

    Quote Originally Posted by kog13 View Post
    Does OpenSuse normally have a noise that plays when the computer is shut down?
    Indeed it does.
    But not when you have the sound turned off.

    It's like this: A car has exhaust fumes that come out, but NOT when the engine is turned off.
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  10. #10

    Default Re: Weird noise at shutdown or reboot

    Could it be the fan on the video card.

    I have a nVidia GeForce 9600 GT. I'm also running OpenSUSE 11.2.

    This card is part of a new machine. It had 512Mb of RAM. But the vendor installed the wrong card. I only found out because I was looking at the Xorg log file and thought it looked wrong. 'nvidia-settings" confirmed it. I ordered the same card but with 1024Mb of RAM, so they swapped it. But it wasn't a transparent change

    The first card was by nVidia, the second one by PNY. The first one was really quiet, the second one makes that hissing sound when I shutdown. I'm told it is the fan, and normal at shutdown.

    You have to look really hard at these video card descriptions. It appears all nVidia GeForce 9600 GT cards aren't created equal.

    This maybe the fan on your video card too, and it is working as designed. Although, I've read of problems with the nVidia driver and video fans. You'll need to check the manufacturer/chipset of your video and then do some searches on the driver. For example, this link.

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