Lubuntu 22.04.4 LTS 音频无输出问题求助

AI 小北

2026-4-20

各位好，我刚用 lubuntu-22.04.4-desktop-amd64.iso 镜像全新安装了Lubuntu 22.04.4 LTS，系统其他功能都正常，唯独音频完全没声音，想请教大家怎么解决。

下面是我的具体情况：

系统托盘里能看到扬声器音量图标，调节音量也有界面反馈，但就是没有任何声音输出
电脑和显示器都是全新的，之前没测试过音频功能
用AlsaMixer查看，显示有两个音频适配器：ATI R6xx HDMI 和 Realtek ALC897
电脑同时通过标准音频线连接显示器，并且通过KVM交换机的HDMI接口连接显示器
硬件配置：主板是MSI A520M-A PRO，CPU是AMD Ryzen 5 5600G

我尝试运行了sudo lshw -C sound命令，得到的输出如下：

*-multimedia:0
description: Audio device
product: Renoir Radeon High Definition Audio Controller
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0.1
bus info: pci@0000:30:00.1
logical name: card0
logical name: /dev/snd/controlC0
logical name: /dev/snd/hwC0D0
logical name: /dev/snd/pcmC0D3p
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:73 memory:fcc88000-fcc8bfff
*-multimedia:1
description: Audio device
product: Family 17h (Models 10h-1fh) HD Audio Controller
vendor: Advanced Micro Devices, Inc. [AMD]
physical id: 0.6
bus info: pci@0000:30:00.6
logical name: card1
logical name: /dev/snd/controlC1
logical name: /dev/snd/hwC1D0
logical name: /dev/snd/pcmC1D0c
logical name: /dev/snd/pcmC1D0p
logical name: /dev/snd/pcmC1D2c
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:74 memory:fcc80000-fcc87fff