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如何修复 Ubunu 20.04 中笔记本电脑充电时发出的噼啪声？

tag-icon • tag-icon sound pulseaudio power-management alsa battery
如何修复 Ubunu 20.04 中笔记本电脑充电时发出的噼啪声？

我最近购买了一台戴尔 Inspiron 2-in-1 5491。除了音频之外，其他一切都很好 - 笔记本电脑充电时，音频会持续发出噼啪声和嘶嘶声；只要我拔出电源线，音频问题就会停止。

有什么解决办法吗？这让​​我抓狂不已！

$ inxi -SMA
System:
  Host: inspiron Kernel: 5.4.0-37-generic x86_64 bits: 64 
  Desktop: Gnome 3.36.2 Distro: Ubuntu 20.04 LTS (Focal Fossa) 
Machine:
  Type: Convertible System: Dell product: Inspiron 5491 2n1 v: N/A 
  serial: <superuser/root required> 
  Mobo: Dell model: 0GJNK1 v: A00 serial: <superuser/root required> 
  UEFI: Dell v: 1.5.0 date: 02/04/2020 
Audio:
  Device-1: Intel driver: snd_hda_intel 
  Sound Server: ALSA v: k5.4.0-37-generic

$ dpkg -l | grep -e pulse -e alsa
ii  alsa-base                                  1.0.25+dfsg-0ubuntu5                  all          ALSA driver configuration files
ii  alsa-oss                                   1.1.8-1                               amd64        ALSA wrapper for OSS applications
ii  alsa-topology-conf                         1.2.2-1                               all          ALSA topology configuration files
ii  alsa-ucm-conf                              1.2.2-1                               all          ALSA Use Case Manager configuration files
ii  alsa-utils                                 1.2.2-1ubuntu1                        amd64        Utilities for configuring and using ALSA
ii  gstreamer1.0-alsa:amd64                    1.16.2-4                              amd64        GStreamer plugin for ALSA
ii  gstreamer1.0-pulseaudio:amd64              1.16.2-1ubuntu2                       amd64        GStreamer plugin for PulseAudio
ii  libpulse-mainloop-glib0:amd64              1:13.99.1-1ubuntu3.3                  amd64        PulseAudio client libraries (glib support)
ii  libpulse0:amd64                            1:13.99.1-1ubuntu3.3                  amd64        PulseAudio client libraries
ii  libpulsedsp:amd64                          1:13.99.1-1ubuntu3.3                  amd64        PulseAudio OSS pre-load library
ii  pulseaudio                                 1:13.99.1-1ubuntu3.3                  amd64        PulseAudio sound server
ii  pulseaudio-module-bluetooth                1:13.99.1-1ubuntu3.3                  amd64        Bluetooth module for PulseAudio sound server
ii  pulseaudio-utils                           1:13.99.1-1ubuntu3.3                  amd64        Command line tools for the PulseAudio sound server

答案1

事实证明，这可能是由于延长插头接地不正确造成的 - 当将设备直接插入墙上插座时，我听到了清晰的音频。感谢@walttheboss 和@Rinzwind！

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