Re: [PATCH v2] ALSA: hda/realtek: Rename Line Out control to Headphone on ThinkPad X1 Carbon 6th

[Takashi Iwai]

On Tue, 11 Aug 2026 08:27:34 +0200,
Zhang Heng wrote:
> 
> The ThinkPad X1 Carbon 6th Gen (ALC285, SSID 17aa:225c) has no physical
> Line Out jack. The 3.5mm headphone jack is wired to the headphone DAC,
> but the ALSA HDA driver names the corresponding control as
> "Line Out Playback Volume" (node 0x02).
> 
> PipeWire's ALSA Card Profile (ACP) silences "Line Out" when headphones
> are activated, which incorrectly mutes the headphone output.
> 
> Add a quirk to rename the control to "Headphone Playback Volume" via
> alc285_lenovo_dac_rename().
> 
> Tested on openSUSE Tumbleweed (kernel 7.1.5):
> - Control renamed successfully, no name collision with "Headphone Playback Switch"
> - Headphone output works across multiple PipeWire/WirePlumber restarts
>   and port switches
> 
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221522
> Signed-off-by: Zhang Heng <zhangheng@xxxxxxxxxx>
> Tested-by: Branislav Klocok <branislav.klocok@xxxxxxxx>

Applied now to for-next branch.  Thanks.


Takashi