[PATCH 6.12 11/42] ALSA: hda/realtek - fixed speaker no sound

Greg Kroah-Hartman
2026-02-17T20:52:50Z

From: Kailang Yang <kailang@realtek.com>

[ Upstream commit 630fbc6e870eb06c5126cc97a3abecbe012272c8 ]

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>
Link: https://lore.kernel.org/f4929e137a7949238cc043d861a4d9f8@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/pci/hda/patch_realtek.c | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index d9c3d1443a956..6e7fa47741b0f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -7650,11 +7650,22 @@ 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;
}
--
2.51.0