Fixed speaker no sound for Lenovo

[Kailang <kailang@realtek.com>]

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Hi Takashi,

Attach patch will solve speaker no sound issue.

BR,
Kailang

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From e2fde12abf4a64910c396c9448543bcf4d916637 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Fri, 23 Jan 2026 15:21:36 +0800
Subject: [PATCH] ALSA: hda/realtek - fixed speaker no sound

If it play a 5s above silence media stream, it will cause silence detection trigger.
Speaker will make no sound when you use another app to play a stream.
Add this patch will solve this issue.

GPIO2: Mute Hotkey GPIO3: Mic Mute LED
Enable this will turn on hotkey and LED support.

Signed-off-by: Kailang Yang <kailang@realtek.com>
diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 7cc844c32474..9addd862b948 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -3446,11 +3446,22 @@ static void alc287_alc1318_playback_pcm_hook(struct hda_pcm_stream *hinfo,
 				   struct snd_pcm_substream *substream,
 				   int action)
 {
+	static const struct coef_fw dis_coefs[] = {
+		WRITE_COEF(0x24, 0x0013), WRITE_COEF(0x25, 0x0000), WRITE_COEF(0x26, 0xC203),
+		WRITE_COEF(0x28, 0x0004), WRITE_COEF(0x29, 0xb023),
+	}; /* Disable AMP silence detection */
+	static const struct coef_fw en_coefs[] = {
+		WRITE_COEF(0x24, 0x0013), WRITE_COEF(0x25, 0x0000), WRITE_COEF(0x26, 0xC203),
+		WRITE_COEF(0x28, 0x0084), WRITE_COEF(0x29, 0xb023),
+	}; /* Enable AMP silence detection */
+
 	switch (action) {
 	case HDA_GEN_PCM_ACT_OPEN:
+		alc_process_coef_fw(codec, dis_coefs);
 		alc_write_coefex_idx(codec, 0x5a, 0x00, 0x954f); /* write gpio3 to high */
 		break;
 	case HDA_GEN_PCM_ACT_CLOSE:
+		alc_process_coef_fw(codec, en_coefs);
 		alc_write_coefex_idx(codec, 0x5a, 0x00, 0x554f); /* write gpio3 as default value */
 		break;
 	}