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Fix Alsamixer Cannot Open Mix Permission Denied

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    If alsamixer doesn’t have permission to open the mixer on your PC, these instructions might help.

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    alsamixer cannot open mixer permission denied

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    I have exactly the same problem. The sound worked fine under Windows 7, but unfortunately not under Kubuntu 04/14. After thousands of days of searching the internet and using all kinds of advice I came across, I found one solution, Which helped me the most. No, you really need to reinstall Ubuntu.

    I first tried to uninstall and use all ALSA packages

      sudo returns apt-get remove --purge alsa-base pulseaudio 
      sudo apt-get use alsa-base pulseaudio 
      sudo alsa force-reload 

    I write that ALSA turned off the main sound type by default after installing it. So I tried to re-enable it using the alsamixer command. Unfortunately this also works due to the Invalid Argument error.

    The store continued and I came across a website that was still showing up in search results but ignored it. It mentioned content, some of which was named .asoundrc . I searched for available ones but couldn’t find a better one on the system. Another website said that you have to create it manually ( /home/username/.asoundrc for the current user only, / etc / asound or .conf if you like, do you want most of it to remain for all user settings) and contain the following content:

      pcm.! default    type hw    Map 0ctl.! Standard    type  hw    Bank card 0 

    After that, I was completely ready to open Alsamixer . However, the browser was empty and did not display the volume settings as expected. Then I have a list of my sound notes cards with

    . open

      cat / proc / asound / maps 

    alsamixer cannot open mixer permission denied

      0 [Generic]: HDA-Intel - HD-Audio Generic                     Generic HD-Audio on 0xf0344000 irq 281 [Generic_1]: HDA-Intel - Generic HD-Audio                     Standard HD-Audio at 0xf0340000 irq 16 

    Map 2 is installed by default for the entire .asoundrc file mentioned above. I played around with it and changed 0 to 1 . Alsamixer immediately showed me the volume settings I needed. The main channel is disabled by default, the ALSA documentation Fix Alsamixer Kan Inte öppna Mix Godkännande Nekad
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