I upgraded the kernel to linux-libre 5.0.1-gnu x86_64 .
$ mpv test.wav Playing: test.wav (+) Audio --aid=1 (pcm_s16le) [ao/alsa] Unable to set buffer time near: Invalid argument AO: [alsa] 44100Hz mono 1ch s16 A: 00:00:27 / 00:00:30 (92%) Exiting... (End of file) [ao/alsa] Write error: Broken pipe
