ubuntu@ubuntu:/media/ubuntu/5911bd26-2b5e-4275-a627-b51f558cfd38/home/jack/文档/chromebox_10th_audio_driver$ ./scripts/install-kaisa-ucm-overlay.sh
systemctl --user restart wireplumber pipewire pipewire-pulse
>>> 安装 UCM2 -> /usr/share/alsa/ucm2/
>>> 安装 WirePlumber Lua -> /usr/share/wireplumber/main.lua.d/
>>> 重启用户 pipewire 栈
完成。请先验证 UCM 能解析（应列出 HiFi，不应报 parse 错误）：
  alsaucm -c sof-rt5682 list _verbs
再按 docs/linux-hdmi/OPERATION_PipeWire_Kaisa_UCM_HiFi.md 验收 pactl / GNOME。
ubuntu@ubuntu:/media/ubuntu/5911bd26-2b5e-4275-a627-b51f558cfd38/home/jack/文档/chromebox_10th_audio_driver$ alsaucm -c sof-rt5682 list _verbs
  0: HiFi
    Kaisa (sof-rt5682): Port1 + HDMI1/2/3 (Jack-driven)
ubuntu@ubuntu:/media/ubuntu/5911bd26-2b5e-4275-a627-b51f558cfd38/home/jack/文档/chromebox_10th_audio_driver$