В какой-то момент перестает работать проигрывание через mplayer:
$ mplayer 01.\ \[A\ Hamlet\ For\ A\ Slothful\ Vassal\].mp3
MPlayer2 2.0-728-g2c378c7-4+b1 (C) 2000-2012 MPlayer Team
Cannot open file '/home/xi/.mplayer/input.conf': No such file or directory
Failed to open /home/xi/.mplayer/input.conf.
Playing 01. [A Hamlet For A Slothful Vassal].mp3.
Detected file format: Audio only
Clip info:
Title: A Hamlet For A Slothful Vassal
Artist: Theatre Of Tragedy
Album: Theatre Of Tragedy
Year: 1995
Comment: http://rutracker.org
Track: 1
Genre: Metal
Load subtitles in .
Selected audio codec: MPEG 1.0/2.0/2.5 layers I, II, III [mpg123]
AUDIO: 44100 Hz, 2 ch, s16le, 320.0 kbit/22.68% (ratio: 40000->176400)
Failed to create secure directory (/run/user/500/pulse): Permission denied
AO: [pulse] Init failed: Connection refused
Failed to initialize audio driver 'pulse'
Failed to create secure directory (/run/user/500/pulse): Permission denied
[AO_ALSA] alsa-lib: confmisc.c:768:(parse_card) cannot find card '0'
[AO_ALSA] alsa-lib: conf.c:4259:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
[AO_ALSA] alsa-lib: confmisc.c:392:(snd_func_concat) error evaluating strings
[AO_ALSA] alsa-lib: conf.c:4259:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
[AO_ALSA] alsa-lib: confmisc.c:1251:(snd_func_refer) error evaluating name
[AO_ALSA] alsa-lib: conf.c:4259:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
[AO_ALSA] alsa-lib: conf.c:4738:(snd_config_expand) Evaluate error: No such file or directory
[AO_ALSA] alsa-lib: pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM default
[AO_ALSA] Playback open error: No such file or directory
Failed to initialize audio driver 'alsa'
[AO SDL] Samplerate: 44100Hz Channels: Stereo Format s16le
[AO SDL] using aalib audio driver.
[AO SDL] Unable to open audio: No available audio device
Failed to initialize audio driver 'sdl:aalib'
Could not open/initialize audio device -> no sound.
Audio: no sound
Video: no video
По всей видимости, это происходит в момент изменения или удаления файла .asoundrc в каталоге пользователя. Хотя документация утверждает, что этот файл можно модифицировать, и изменения сразу применяются. Возможно, это справледливо для чистой ALSA, но если в системе есть PulseAudio, то такое изменение настроек вызывает ступор.