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            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED NOTOURBUG - ALSA lib simple_none.c:1550:(simple_add1) helem (MIXER,'Master Playback Switch',0,1,0) appears twice or more"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=101102#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED NOTOURBUG - ALSA lib simple_none.c:1550:(simple_add1) helem (MIXER,'Master Playback Switch',0,1,0) appears twice or more"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=101102">bug 101102</a>
              from <span class="vcard"><a class="email" href="mailto:mail@rudolfschmidt.com" title="mail@rudolfschmidt.com">mail@rudolfschmidt.com</a>
</span></b>
        <pre>I also get 

$ dmesg|grep snd_hda_intel
[    2.323001] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002)
[    2.323299] snd_hda_intel 0000:01:00.1: Disabling MSI
[    2.323301] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client
[    2.360636] snd_hda_intel 0000:00:1f.3: control 2:0:0:Master Playback
Volume:0 is already present
[    2.361238] snd_hda_intel 0000:00:1f.3: control 2:0:0:Master Playback
Switch:0 is already present
[    2.361830] snd_hda_intel 0000:00:1f.3: control 2:0:0:Capture Volume:0 is
already present
[    2.362406] snd_hda_intel 0000:00:1f.3: control 2:0:0:Capture Switch:0 is
already present
[    2.362972] snd_hda_intel 0000:00:1f.3: control 2:0:0:Mic Boost Volume:0 is
already present

Dont know what causes it.

I have reported to the alsa devs</pre>
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