Kubuntu 19.10: Issue with internal B&O (Bang and Olufsen) speakers

Question

首先，我知道这个问题非常普遍，而且还没有得到解决，尽管它年老问题了。我也知道这个问题与数十个类似的问题重复。而且我对声卡和其他术语不是很了解。

我的机器：

• HP Pavilion cw-1010-ur
• Kubuntu 19.10 64 位
• 内核版本 5.3.0-29-generic
• AMD 处理器和集成 GPU

我的笔记本电脑内置 B&O（Bang and Olufsen）扬声器。在 Windows 10 上，即使没有自动安装的驱动程序，扬声器正常工作（没有静态或静音频道或任何东西）。在 Kubuntu 上，扬声器根本不工作：

（读这个）

使用时，pavucontrol我能够确定声音已正常发送到扬声器（音量滑动指示器不断变化 - 音乐正在播放的标志），但扬声器完全没有声音。然后我注意到扬声器端口显示“扬声器（不可用)”。系统无法识别 B&O 扬声器。

（阅读以上部分）

声卡芯片是ACL295 Analog。

我需要帮助让 Kubuntu OS 识别我的 B&O 扬声器. If you want to send a link to one of the duplicate questions, don't. I have foraged through many such questions, on arch/mint/ubuntu/manjaro forums. None of the few solutions listed there worked for me.

Now here is why I started writing this question: I think that the issue is not with Kubuntu. It is just that between the Realtek ACL295 chip and the speakers there is actually a third chip, most likely of B&O production, that Kubuntu cannot communicate with. Again, I think this might be the case. If it is, then there is nothing we can do. If not, and you think you have a solution that might work, then please do share it here. Thank you.