[Bug] Alienware 16 Area-51 AA16250 Subwoofer Not Working

[oitsjustjose]

System Information

• Computer: Alienware 16 Area-51 AA16250
• Kernel: 7.0.11-cachyos
• SOF firmware: 2025.12.2
• RT722 + RT1320 SoundWire Config

Issue

Only FL and FR channels are exposed. 80Hz repro is effectively absent, and ACPI reports both SmartAmp functions, but only a single RT1320 device is instantiated.

[shumingfan]

@oitsjustjose
Please share the alsa-info with us.

You could try one test:
$ cd /usr/share/alsa/ucm2/sof-soundwire/
$ cp rt712+rt1320.conf rt722+rt1320.conf
$ reboot

[oitsjustjose]

Here's the alsa-info report. I did try that test, and audio still works but my 80hz range is still near-silent.