所属类别：Linux

文章作者：mystérieux

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用realplayer播放了几个文件后，发现/dev/dsp被占用了，除非重启，否则再也放不出声音。realplayer的提示如下ALSA lib pcm_dmix.c:1008:(snd_pcm_dmix_open) unable to open slavemplayer的提示如下MPlayer 1.0-1.rc2.18mdv2009.0-4.3.2 (C) 2000-2007 MPlayer TeamCPU: AMD Sempron(tm) Processor 3000+ (Family: 15, Model: 44, Stepping: 2)CPUflags: MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1Compiled with runtime CPU detection.mplayer: could not connect to socketmplayer: No such file or directoryFailed to open LIRC support. You will not be able to use your remote control.Playing 08022310314794.mp3.Audio file file format detected.==========================================================================Trying to force audio codec driver family libmad...Opening audio decoder: [libmad] libmad mpeg audio decoderAUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)Selected audio codec: [mad] afm: libmad (libMAD MPEG layer 1-2-3)==========================================================================AO: [pulse] Init failed: Connection refused[AO_ALSA] alsa-lib: pcm_hw.c:1321:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed: Device or resource busy[AO_ALSA] alsa-lib: pcm_dmix.c:1008:(snd_pcm_dmix_open) unable to open slave[AO_ALSA] Playback open error: Device or resource busy[AO OSS] audio_setup: Can't open audio device /dev/dsp: Device or resource busy[AO ESD] esd_open_sound failed: Connection timed out[AO OSS] audio_setup: Can't open audio device /dev/dsp: Device or resource busy[AO_ALSA] alsa-lib: pcm_hw.c:1321:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed: Device or resource busy[AO_ALSA] alsa-lib: pcm_dmix.c:1008:(snd_pcm_dmix_open) unable to open slave[AO_ALSA] Playback open error: Device or resource busy[AO ESD] esd_open_sound failed: Connection timed outAO: [pulse] Init failed: Connection refused[JACK] cannot open server想把声卡驱动卸掉重装，但会报告驱动在使用中，为了找到原因，还是不要强行卸掉，搜索了一下外国人的论坛 www.linuxforums.org/forum ，上面有个贴子说是firefox 占用的，但我的firefox 上面没有开视频网页，而且关掉浏览器以后还是不行，后来用了lsof来查，先查的是dsp，无结果，后来又查了pcm，发现居然是scim占用了，# lsof grep pcmscim-laun 4500 saga 13u CHR 116,16 0t0 2777 /dev/snd/pcmC0D0pscim-help 4504 saga 13u CHR 116,16 0t0 2777 /dev/snd/pcmC0D0pscim-pane 4505 saga 13u CHR 116,16 0t0 2777 /dev/snd/pcmC0D0pscim-brid 4507 saga 13u CHR 116,16 0t0 2777 /dev/snd/pcmC0D0p杀掉scim进程，声音恢复。

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