Yes, this is because the alsa-lib has a new change but the pulseaudio
has not changed accordingly.
commit 93e03bdc2a3dcd5d12516f5de78e14d88a32ff2c
Author: Jaroslav Kysela <pe...@perex.cz>
Date: Wed Apr 4 09:58:12 2018 +0200
alsa.conf: change the location for add-on configs to /etc/alsa/conf.d
The add-on configuration files should be placed to a volatile place.
Signed-off-by: Jaroslav Kysela <pe...@perex.cz>
The steps to reproduce it:
install ubuntu 19.04 on a machine (any machines with audio capablilities)
after booting up, cd /tmp; arecord test.wav; aplay test.wav, then the aplay
will fail. And from then on, both aplay and arecord can't work anymore.
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https://bugs.launchpad.net/bugs/1824103
Title:
aplay record file failed always.
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