安装 nVidia 驱动程序后，显示端口连接的显示器上的声音停止工作gtx 660。
我尝试重新启动 pulseaudio 并在每个输出设备之间切换，但是没有声音通过显示端口传出。
通过搜索论坛我找到了一些诊断脚本，但是它们都没有导致扬声器发出声音。
>>> aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 0/1
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
card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
>>> aplay -D hw:1,3 testsound.wav
aplay: main:788: audio open error: Device or resource busy
>>> aplay -D hw:1,7 testsound.wav
Playing WAVE 'testsound.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
>>> aplay -D hw:1,8 testsound.wav
Playing WAVE 'testsound.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
>>> aplay -D hw:1,9 testsound.wav
Playing WAVE 'testsound.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
如何让我的计算机再次恢复声音？
答案1
看起来这是最近驱动程序版本中的一个已知错误。请参阅：https://devtalk.nvidia.com/default/topic/1019761/linux/no-sound-using-displayport-audio-with-375-82-384-59-and-384-69/
看来我们要么等待更新，要么降级到旧版本。