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Linux audio: Device or resource busy | Pebbles in the Sand

    https://pebblesinthesand.wordpress.com/2009/12/10/linux-audio-device-or-resource-busy/
    /dev/dsp: Device or resource busy. The solution is simple, you just need to identify the runaway process and kill it. Command lsof | grep snd gives a list of candidates that might be occupying the audio device. These can be terminated by killall program_name or kill PID, where PID is the process ID shown in the second column of lsof output.

Can't open audio device. Device or resource busy.

    https://www.linuxquestions.org/questions/linux-software-2/can%27t-open-audio-device-device-or-resource-busy-649589/
    [AO OSS] audio_setup: Can't open audio device /dev/dsp: Device or resource busy You shouldn't be using OSS, any application using OSS locks the audio device for itself. You need to configure your applications to use either ALSA, ESD, arts or any other thing.

Linux Audio device busy - Kodi

    https://forum.kodi.tv/showthread.php?tid=148428
    Code: [AO_ALSA] alsa-lib: pcm_hw.c:1293:(snd_pcm_hw_open) open '/dev/snd/pcmC0D7p' failed (-16): Device or resource busy. [AO_ALSA] Playback open error: Device or resource busy. Failed to initialize audio driver 'alsa:device=hw=0.7'. Audio works if XBMC is exited only.

Linux Sound — USB-Audio: Device or resource busy (strace log)

    https://www.spinics.net/linux/fedora/linux-sound/msg00720.html
    $ arecord --device hw:0,0 --channels 2 --format S16_LE --rate 44100Hz x.wav arecord: main:722: audio open error: Device or resource busy 'arecord' command always fails the first time after system boot in my system.

[SOLVED] ALSA: device or resource is busy - Arch Linux

    https://bbs.archlinux.org/viewtopic.php?id=116042
    Posts: 181. [SOLVED] ALSA: device or resource is busy. Hi, I can't get media players to play audio through 1 of soundcards: There's 2 soundcards: Juli@ and CMI8738 (for a headset). Now for VLC: $ vlc --aout alsa --alsa-audio-device=plughw:1,0 sample.avi. plays fine (sound goes through CMI8738), but: $ vlc --aout alsa --alsa-audio-device=plughw ...

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