ALSA: hda/realtek: Enable 4-speaker output for Dell XPS 15 9520 laptop

[Steve Boardwell]

This is cherry pick from a bug fix which was added to kernel 5.17.5.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=216035
Commit: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=15dad62f4bdb5dc0f0efde8181d680db9963544c

With Ubuntu 22.05 coming with 5.15.x it would be really nice to have this in as well.

Thanks for all hard work.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1981364

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Steve Boardwell (steve-boardwell)]

The bug was confirmed on the linked ticket.

[Steve Boardwell (steve-boardwell)]

Hi, is there anything still needed here to get this looked at?

[Steve Boardwell (steve-boardwell)]

This is a single line addition and risk-free. Is there anyway it can be processed quickly. The improvement in sound is like day and night for those affected. Thanks again.

[Timo Aaltonen (tjaalton)]

that commit is upstream in 5.15.46 and up, jammy kernel already has changes up to and including 5.15.60, so there's nothing to do

[arks (arksnorman)]

Speakers work with this fix but the sound quality is not as good as compared to that when you have windows on the laptop. It's like they went ahead and switched off the subwoofers on the system.

Any fixes for this?
I have upgraded to Linux Kernel 6.2 but no change at all.

[Cheng Lu (dawndiy)]

This bug just be fixed partly. DELL XPS 9520 has 4-speaker, this (https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=15dad62f4bdb5dc0f0efde8181d680db9963544c) commit just make it has sound without 2 subwoofer. Here is a same bug report (https://bugzilla.kernel.org/show_bug.cgi?id=215233)