Windows 8 and 8.1 Forums


Win8.1/Ubuntu dual boot... sound issue only after OS swap

  1. #1


    Posts : 24
    8.1 pro + Ubuntu

    Win8.1/Ubuntu dual boot... sound issue only after OS swap


    I have 8.1 and Ubuntu in dual boot.

    Sound works perfectly until...... I restart from Ubuntu and load Windows... then I have to put Windows to sleep and wake up again to get the sound to work.... right pain in the rectum it is....

    Does we know how to fix this anyone please...?

    Nick

      My System SpecsSystem Spec

  2. #2


    I set Windows hibernate off to prevent conflicts between the OS' - it results in slower boot time but on an SSD it's not that much of a problem.
      My System SpecsSystem Spec

  3. #3


    Posts : 24
    8.1 pro + Ubuntu


    Having just tried a process of elimination by trying all variables I can narrow it down.

    It ONLY happens if I choose Restart from Ubuntu.... Shutdown and start from power button choosing to boot Windows doesn't result in the issue.

    Also.... the issue is ONLY at the speaker jack.... if i unplug the extension speakers the sound is working thru laptop speakers perfectly and I assume that is why Device Manager is reporting all is working fine.

    Seems that restart from Ubuntu is shutting down my ext jack plug in Windows... until I put windows to sleep and reawaken.

    The plot thickens..........................

    registry key missing/corrupt maybe....?????
    Last edited by base1268; 12 Apr 2015 at 08:37.
      My System SpecsSystem Spec

  4. #4


    Hi

    How did you configured the dual boot ?. Is it legacy or UEFI mode ?.
      My System SpecsSystem Spec

  5. #5


    Posts : 24
    8.1 pro + Ubuntu


    My BIOS is Phoenix version 07PA and has a selection which reads 'UEFI support' and in the definition pane states "if enabled will allow booting to BIOS OS or UEFI OS"... that's exactly how it's written.... which seems a bit odd as most new machines have CSM or UEFI with a secure boot function.... this Samsung with the phoenix BIOS doesn't offer those choices.

    I can run the dual boot with the UEFI support enabled or disabled.... same audio issue

    been reading a thread on Superuser where someone else faced this issue.... apparently Ubuntu makes a mess of the Windows audio drivers and the end result was 'it can't be fixed'.... .... Can't...?... that word does not compute... of course it can be fixed.... what they meant was that there is no-one clever enough to suggest the correct solution available....

    So.... unless someone really clever can suggest how I might fix this I will have to put up with not using restart and instead just shutdown and fire up the machine again to get into Windows from Ubuntu.... extra 10 seconds....

    l can only guess that Ubuntu is shutting down the audio ext speaker jack when restart is selected.... there must surely be a registry key that is responsible for making this happen during the restart process but only relative to windows audio driver
      My System SpecsSystem Spec

  6. #6


    I can run the dual boot with the UEFI support enabled or disabled.... same audio issue
    In that case i assume you have a legacy mode install. I never saw this audio issue before but i have seen Ubuntu causing graphical issues to Windows 7/8.x. That is, you boot to Ubuntu, restart the system and select "Windows 7/8" from the GRUB menu, you may see artifacts from Ubuntu/graphical glitches during the Windows loading animation. So far i have seen this only on laptops and not on any Desktops. In the end i fixed the issue ( on multiple laptops ) by configuring Windows boot manager to dual boot both Windows and Linux together. That is the issue only present when GRUB2 is being used as the boot loader but not when Windows boot manager directly load Windows. Since Windows boot manager can't directly chainload Ubuntu, i have used "EasyBCD" to configure the dual boot.

    However it's a risky process and i don't know whether it will fix your audio issue. So i guess shutdown and then powering again will be the safe root. But if you are willing to experiment, he re is the link to a tutorial which will assist you in configuring the dual boot.

    https://neosmart.net/wiki/easybcd/du.../linux/ubuntu/
      My System SpecsSystem Spec

  7. #7


    Posts : 24
    8.1 pro + Ubuntu


    I have EasyBCD on board my Win utilities folder.... tried to change bootloader control... makes no difference to the sound issue

    What it has done is add an extra screen (or 2) for booting purposes.... and in fact when I power on I now get the very pretty GUI Win 8.1/Ubuntu dual boot screen first... before then taking me to a DOS looking screen with same choice.... then finally to the Grub multi choice screen.

    I'll reverse that back to how it was I think and stick with powering off completely to swap out OS without losing sound to my BOSE speakers.

    The only thing I haven't tried is uninstallng audio drivers in Windows and powering off then reinstalling them in case it was Linux install that messed them up..... you know I'll try that.... we hate not finding solution to logical issues.... because there IS a solution !!!
      My System SpecsSystem Spec

Win8.1/Ubuntu dual boot... sound issue only after OS swap
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