![没有声音——但 Ubuntu 认为应该有](https://linux22.com/image/1090253/%E6%B2%A1%E6%9C%89%E5%A3%B0%E9%9F%B3%E2%80%94%E2%80%94%E4%BD%86%20Ubuntu%20%E8%AE%A4%E4%B8%BA%E5%BA%94%E8%AF%A5%E6%9C%89.png)
我的笔记本电脑发不出任何声音。
Ubuntu 显示声音选项,功能键用于调节音量,pavucontrol 显示“内置模拟立体声”输出到“扬声器”。
无论什么事,都不会发出声音。
我尝试过: - 重新安装 Ubuntu 17.04 - 较新的内核 - 更改为 OSS4 - 甚至安装 Windows 以检查是否是硬件错误(工作正常且驱动程序显示为 Realtek Audio)
有人有什么建议吗?我很困惑,如果能得到帮助就太好了!
提前致谢。
以下信息:
lspci | grep Audio
00:1f.3 Audio device: Intel Corporation Device a171 (rev 31)
01:00.1 Audio device: NVIDIA Corporation GP104 High Definition Audio Controller (rev a1)
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: Generic Analog [Generic Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: Generic Digital [Generic Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
答案1
我猜是调出alsamixer
并取消扬声器的静音。这种硬件标志似乎并不总是导出/对 Pulseaudio 可见。