Question

我不能将alsa用作普通用户（导致我的铬没有声音）。

我猜它与权限有关。将自己添加到群组音频没有帮助。

[zarac@towelie ~]$ grep audio /etc/group
audio:x:92:mpd,zarac

以普通用户身份测试声音：

[zarac@towelie ~]$ 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
[zarac@towelie ~]$

并以root身份......

[root@towelie 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
[root@towelie zarac]#

以普通用户身份运行命令'aplay -l'：

[zarac@towelie ~]$ aplay -l
aplay: device_list:235: no soundcards found...

并以root身份......

[root@towelie 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

任何可能导致此问题的线索都表示赞赏。也许某些事情需要在某个地方进行调整？

Answer 1

尝试查看/ dev / dsp和/ dev / snd / *的权限。如果您对这些文件没有读写权限，则无法发出声音。

Answer 2

我注意到在我的CentOS版本5.9和安装VLC的实例中，我需要将我的用户添加到/ etc / group中的音频组以实际获得声音。 HTH

Answer 3

$ sudo /etc/init.d/alsa-utils reset

aplay / alsaplayer - 声音对普通用户不起作用

3 个答案: