Windows 10: Audio disappeared - got it back but now have odd mkv problem Solved

  1.    16 Dec 2017 #1

    Audio disappeared - got it back but now have odd mkv problem


    Hi. While working at my Windows 10 PC yesterday, I realised there was no sound. My media players gave video only and Avidemux gave a warning “Trouble Initializing Audio Device”. All the obvious checks suggested that there was no problem, drivers were up to date etc.

    I went to the sound icon in the system tray and clicked 'Troubleshoot sound problems' which told me it had fixed something but didn't say what. I now have my sound back but with some new issues:

    • my WMP no longer plays mkv files
    • my mkv files no longer show a 'thumbnail', just the logo of whichever media player is set to play them.

    Can anyone suggest what on Earth happened yesterday? Many thanks.

    UPDATE: I've found one or two mkv files that DO work with WMP and show thumbnails(!!). But the vast majority of my mkv's have the highlighted problem. All very odd...
    Last edited by dortmunder; 16 Dec 2017 at 08:36.
      My ComputerSystem Spec

  2.    16 Dec 2017 #2

    WMP does not natively play mkv files. Did you add a codec package before to do this ?
    You can download VLC player which will play virtually any audio/video codec out there. The thumbnails show fine on my system when VLC is the default play program for all video files which you can choose on setup. Worth testing if nothing else, making sure to choose correct bitness for your system -
    https://www.videolan.org/vlc/
      My ComputerSystem Spec

  3.    17 Dec 2017 #3

    I'm fairly sure it was after the recent Fall Creators Update that I noticed WMP could play mkv. I just assumed it was an upgrade to WMP. I don't use codec packs (unless they come with something else - MeGUI or suchlike). I'm more interested in what caused the audio to stop more than the mkv issues but I'll have a look at VLC. Thanks for your time, mrgeek.
      My ComputerSystem Spec

  4.    17 Dec 2017 #4

    I have WMP disabled for years but does the file play in Win10 Movies & TV app ? This does play mkv's w/o codec packages. Even if it does, I prefer VLC for the abundance of playback features. Good Luck
      My ComputerSystem Spec

  5.    17 Dec 2017 #5

    No, the Films & TV app 'Can't play' an mkv. Error 0xc00db3b2 which some reddit users are also having a problem with.
      My ComputerSystem Spec


 

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