Bug 216035

Summary: ALSA: hda/realtek subwoofer 2.1 quirk Dell XPS 15 9520
Product: Drivers Reporter: Rik van der Kemp (rik)
Component: Sound(ALSA)Assignee: Jaroslav Kysela (perex)
Status: RESOLVED CODE_FIX    
Severity: normal CC: rik, steve.boardwell
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 5.17.5 Subsystem:
Regression: No Bisected commit-id:
Attachments: Patch to fix sound quirk

Description Rik van der Kemp 2022-05-27 00:45:22 UTC 
The subwoofer isn't enabled out-of-the-box. It seems like this is a similar issue as previous dell models.

I've looked at a possible patch and tried (to no avail) to create a patch and test it out locally. Never build the kernel before.

But I've looked at previous entries, used lspci -vmnn to discover the right Svendor and SDevice.

So I believe this will fix the issue in sound/pci/hda/patch_realtek.c


SND_PCI_QUIRK(0x1028, 0x0b19, "Dell XPS 15 9520", ALC289_FIXUP_DUAL_SPK)

Happy to test out any builds etc.
Comment 1 Rik van der Kemp 2022-05-27 10:41:02 UTC 
Created attachment 301056 [details]
Patch to fix sound quirk

I have successfully compiled the kernel (version 5.17.11) and confirmed the sound working properly.
Comment 2 Rik van der Kemp 2022-05-27 19:59:58 UTC 
Filled in patch, this has been applied see: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=15dad62f4bdb5dc0f0efde8181d680db9963544c
Comment 3 Steve Boardwell 2022-07-10 20:48:57 UTC 
Hello, is there any chance of getting this backported to the 5.15.x series? 

5.17.x has just been made EOL and 5.18.x is probably a little too bleeding edge for the most. For example, Ubuntu 22.04 LTS will be coming out with 5.15.x.
Comment 4 Steve Boardwell 2022-07-11 21:29:05 UTC 
Added https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1981364