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我不能將alsa用作普通用戶（導致我沒有使用鉻的聲音）。aplay/alsaplayer - 聲音對普通用戶不起作用
我猜測它與權限有關。將自己添加到組音頻中並沒有幫助。
[[email protected] ~]$ grep audio /etc/group
audio:x:92:mpd,zarac
測試聲音作爲普通用戶：
[[email protected] ~]$ aplay /usr/share/sounds/alsa/Noise.wav
ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
ALSA lib conf.c:4154:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4154:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:4154:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4633:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2211:(snd_pcm_open_noupdate) Unknown PCM default
aplay: main:654: audio open error: No such file or directory
[[email protected] ~]$
和根...
[[email protected] zarac]# aplay /usr/share/sounds/alsa/Noise.wav
Playing WAVE '/usr/share/sounds/alsa/Noise.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
[[email protected] zarac]#
運行命令 'aplay -l' 作爲普通用戶：
[[email protected] ~]$ aplay -l
aplay: device_list:235: no soundcards found...
和作爲根...
[[email protected] zarac]# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: XFi [Creative X-Fi], device 0: ctxfi [Front/WaveIn]
Subdevices: 6/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 0: XFi [Creative X-Fi], device 1: ctxfi [Surround]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 0: XFi [Creative X-Fi], device 2: ctxfi [Center/LFE]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 0: XFi [Creative X-Fi], device 3: ctxfi [Side]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 0: XFi [Creative X-Fi], device 4: ctxfi [IEC958 Non-audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Intel [HDA Intel], device 0: ALC889A Analog [ALC889A Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Intel [HDA Intel], device 1: ALC889A Digital [ALC889A Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
任何可能導致這種情況的線索都是值得讚賞的。也許某些事情需要在某種地方進行調整？
btw，mpd正常工作... mpd 3867 0.4 0.3 185804 12324？ Ssl 21:58 0:16/usr/bin/mpd /etc/mpd.conf – Hannes 2010-08-25 20:57:19