Re: [PATCH v6] ALSA: hda/realtek: Fix speaker pop on Star Labs StarFighter
From: Takashi Iwai
Date: Mon Feb 23 2026 - 03:51:35 EST
On Thu, 19 Feb 2026 21:14:26 +0100,
Sean Rhodes wrote:
>
> On Star Labs StarFighter (Realtek ALC233/235), the internal speakers can
> emit an audible pop when entering or leaving runtime suspend.
>
> Mute the speaker output paths via snd_hda_gen_shutup_speakers() in the
> Realtek shutup callback before the codec is powered down.
>
> This is enough to avoid the pop without special EAPD handling.
>
> Test results:
> - runtime PM pop fixed
> - still reaches D3 (PCI 0000:00:1f.3 power_state=D3hot)
> - does not address pops on cold boot (G3 exit) or around display manager
> start/shutdown
>
> journalctl -k (boot):
> - snd_hda_codec_alc269 hdaudioC0D0: ALC233: picked fixup for PCI SSID
> 7017:2014
> - snd_hda_codec_alc269 hdaudioC0D0: autoconfig for ALC233: line_outs=1
> (0x1b/0x0/0x0/0x0/0x0) type:speaker
>
> Cc: Jaroslav Kysela <perex@xxxxxxxx>
> Cc: Takashi Iwai <tiwai@xxxxxxxx>
> Cc: Stefan Binding <sbinding@xxxxxxxxxxxxxxxxxxxxx>
> Cc: Kailang Yang <kailang@xxxxxxxxxxx>
> Cc: Chris Chiu <chris.chiu@xxxxxxxxxxxxx>
> Cc: Edip Hazuri <edip@xxxxxxxxx>
> Cc: linux-sound@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Suggested-by: Takashi Iwai <tiwai@xxxxxxxx>
> Tested-by: Sean Rhodes <sean@starlabs.systems>
> Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Applied now. Thanks.
Takashi