Hello

I would like to add some more info to my previous E-Mail:

Problem description: The laptop has two speakers above the keyboard, which work as intended. It also has two down-firing speakers (called "Subwoofers", even though they play all frequencies), which always play at 100% volume, regardless of the system volume setting. I have checked this with also-utils. They do mute when the system volume is reduced to 0% though.

Problem 2 description: When I plug in headphones, I'd expect them to show up as a new output device, so I can switch between laptop speakers and headphones over the tray icon. Unfortunately, this isn't the case, and instead I have to open the system settings, where I can switch between speakers and headphones in the configuration of this sound card: [image: image.png]

Please find the output of alsa-info.sh here: http://alsa-project.org/db/?f=ee42a4871704567a853b025c20a02deed49ef4c0 The card in question is card2.

Please also find the file /proc/asound/card2/codec#0 attached.

Please also let me know if there's any way in which I can assist solving this issue.

Best regards, --Sandro

On Fri, 11 Jul 2025 at 13:48, Sandro Gähler gaehlers@gmail.com wrote:

Hello

I would like to report a bug for the brand new Lenovo Yoga 7 2-in-1 16AKP10. It has the same sound chip and also the same volume control bug as several older models. I thus assume that the same workaround, written by Philipp Jungkamp and later by Pascal Gross, will also work for this model.

There are several lines with laptops that apply this workaround, for example this line in linux/sound/pci/hda/patch_realtek.c:

SND_PCI_QUIRK(0x17aa, 0x3801, "Lenovo Yoga9 14IAP7", ALC287_FIXUP_YOGA9_14IAP7_BASS_SPK_PIN)

Could you please add this line for my model?

SND_PCI_QUIRK(0x????, 0x????, "Lenovo Yoga 7 2-in-1 16AKP10", ALC287_FIXUP_YOGA9_14IAP7_BASS_SPK_PIN),

Please advise on how to determine the first two parameters.

Thanks a lot for your great work and support.

Best regards, --Sandro Gähler