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系统及机器信息:
[root@shell /]# uname -a
Linux shell 2.6.23.1-21.fc7 #1 SMP Thu Nov 1 20:28:15 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
检测到的声卡:
[root@shell /]# lspci -v | grep Audio
00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2)
详细驱动管理信息如下:
[root@shell /]# amixer
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 43
Mono:
Front Left: Playback 32 [74%] [on]
Front Right: Playback 32 [74%] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 191 [75%] [-12.80dB]
Front Right: Playback 191 [75%] [-12.80dB]
Simple mixer control 'LineIn',0
Capabilities: cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Capture channels: Mono
Mono: Capture [off]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Ext Mic',0
Capabilities: volume pswitch
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 23
Front Left: 23 [100%] [34.50dB] Playback [off]
Front Right: 23 [100%] [34.50dB] Playback [off]
Simple mixer control 'Int Mic',0
Capabilities: volume pswitch
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 23
Front Left: 23 [100%] [34.50dB] Playback [off]
Front Right: 23 [100%] [34.50dB] Playback [off]
Simple mixer control 'IntMic',0
Capabilities: cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Capture channels: Mono
Mono: Capture [on]
在运行system-config-soundcard时能够检测到声卡,但是检测时不能发出声音,而机器在windows下能够正常发音的,据说alsa驱动默认是静音的,我运行:
[root@shell Documents]# amixer -c 0 sset 'Master',0 100%,100% unmute
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 43
Mono:
Front Left: Playback 43 [100%] [on]
Front Right: Playback 43 [100%] [on]
和:
[root@shell Documents]# amixer -c 0 sset 'PCM',0 100% unmute
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 255 [100%] [0.00dB]
Front Right: Playback 255 [100%] [0.00dB]
后,系统还是没有声音,这是为什么?是我哪里设置得不对呢? |
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