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Check pavucontrol (pulseaudio volume
control, install if necessary), I use usb devices that
occasionally glitch and get lost. If something is bound to it,
like a use a chrome-based voip service that if active, locks the
device, and a hard-disconnect means a reboot to see the usb
headset again. That's a major party foul, but such is life, and
you might see something similar if using usb devices I've found.
If local on-board sound, I'd say it's just flaky, or you broke pulse somehow. I end up switching inputs and outputs a lot for voip, music, and various input/outputs amount local sound, headsets, other. Pulse does a good job, usually more kernel than anything when devices arise, thus dmesg is you friend. As stated, when sound devices get deadlocked with the kernel, a reboot I've found is needed to fix as easiest resolution. You can also likely rmmod the devices, and insmod them back, maybe, too that occasionally works for me, but either way the kernel module to hardware device interrupt map is broken at some level. Caveat emptor with pavucontrol - I get it going batcrap crazy and consuming 10gb of ram occasionally, wondering why I'm ever hitting swap. Necessary evil I find, I just try not to leave running. -mb On 12/22/2015 11:00 PM, Michael Havens wrote:
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