[PATCH v2 2/2] ALSA: hda/realtek: Limit Legion AW88399 playback to stereo
Aaron Ma <[email protected]>
| Newsgroups | org.kernel.vger.linux-kernel,org.kernel.vger.linux-sound |
|---|---|
| Message-ID | <[email protected]> |
The Legion AW88399 speaker routing sends a stereo FL/FR stream to both speaker pairs. A four-channel stream leaves the front pair silent, so advertising four channels exposes an unusable playback mode. Limit the analogue PCM and the multi-output runtime constraint to two channels for the affected Legion codec SSIDs. This exposes the usable stereo configuration and rejects four-channel playback. Signed-off-by: Aaron Ma <[email protected]> --- Changes in v2: - Based on the original 2/3 (39adb275a45cd "Use quad channel map for Legion AW88399 speakers"), reworked: instead of advertising a quad channel map, playback is now limited to stereo because both speaker pairs carry the same stereo signal. sound/hda/codecs/realtek/alc269.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c index 30d71575bac3b..1231d9bfeeb16 100644 --- a/sound/hda/codecs/realtek/alc269.c +++ b/sound/hda/codecs/realtek/alc269.c @@ -3291,6 +3291,10 @@ static void alc287_fixup_legion_16iax10h_aw88399(struct hda_codec *codec, spec->gen.suppress_auto_mic = 1; snd_hda_override_conn_list(codec, 0x17, ARRAY_SIZE(conn), conn); break; + case HDA_FIXUP_ACT_BUILD: + spec->gen.multiout.max_channels = 2; + spec->gen.pcm_rec[0]->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max = 2; + break; } } -- 2.53.0