linuxmint开始有声音,可以调节。后来,只是在浏览器上有声音,系统不能发声,不能调节

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依然fantasy
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linuxmint开始有声音,可以调节。后来,只是在浏览器上有声音,系统不能发声,不能调节

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帖子 依然fantasy » 2017-04-15 14:30

背景:linux18.1 以root登录
如上,现在在浏览器里可以播放视频,但声音默认最大,不过在网页上可以调节。系统没有欢迎声,无法调节声音。
执行aplay -L
反馈:
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
default:CARD=PCH
HDA Intel PCH, CX20753/4 Analog
Default Audio Device
sysdefault:CARD=PCH
HDA Intel PCH, CX20753/4 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, CX20753/4 Analog
Front speakers
surround21:CARD=PCH,DEV=0
HDA Intel PCH, CX20753/4 Analog
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, CX20753/4 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, CX20753/4 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, CX20753/4 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, CX20753/4 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, CX20753/4 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
hdmi:CARD=PCH,DEV=0
HDA Intel PCH, HDMI 0
HDMI Audio Output
hdmi:CARD=PCH,DEV=1
HDA Intel PCH, HDMI 1
HDMI Audio Output
hdmi:CARD=PCH,DEV=2
HDA Intel PCH, HDMI 2
HDMI Audio Output
dmix:CARD=PCH,DEV=0
HDA Intel PCH, CX20753/4 Analog
Direct sample mixing device
dmix:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Direct sample mixing device
dmix:CARD=PCH,DEV=7
HDA Intel PCH, HDMI 1
Direct sample mixing device
dmix:CARD=PCH,DEV=8
HDA Intel PCH, HDMI 2
Direct sample mixing device
dsnoop:CARD=PCH,DEV=0
HDA Intel PCH, CX20753/4 Analog
Direct sample snooping device
dsnoop:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Direct sample snooping device
dsnoop:CARD=PCH,DEV=7
HDA Intel PCH, HDMI 1
Direct sample snooping device
dsnoop:CARD=PCH,DEV=8
HDA Intel PCH, HDMI 2
Direct sample snooping device
hw:CARD=PCH,DEV=0
HDA Intel PCH, CX20753/4 Analog
Direct hardware device without any conversions
hw:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Direct hardware device without any conversions
hw:CARD=PCH,DEV=7
HDA Intel PCH, HDMI 1
Direct hardware device without any conversions
hw:CARD=PCH,DEV=8
HDA Intel PCH, HDMI 2
Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
HDA Intel PCH, CX20753/4 Analog
Hardware device with all software conversions
plughw:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Hardware device with all software conversions
plughw:CARD=PCH,DEV=7
HDA Intel PCH, HDMI 1
Hardware device with all software conversions
plughw:CARD=PCH,DEV=8
HDA Intel PCH, HDMI 2
Hardware device with all software conversions

求助,另外,ubuntu方面表示不在进军手机、平板、dir,桌面也跳回GNOME,表示小有遗憾呢。。。。。。
附件
Selection_002.png
进入声音设置后,如图显示,调不了声音
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