Comment 36 for bug 78257

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Gabriel Ambuehl (gabriel-ambuehl) wrote : Re: [Bug 78257] Re: Intel HDA No sound after Standby

As a workaround, try the following after resume:

sudo fuser /dev/snd/pcm*
will list you what processes use the sound hardware.

sudo fuser -k /dev/snd/pcm*

will kill them, after which I can restart whatever I want to play sound and
have sound again.sudo fuser /dev/snd/pcm*