ALSA: Fix sample rate of Lenovo Ideapad to 44.1kHz
Noises can be heard on analog outputs of (some model of) Lenovo
Ideapad due to the hardware problem, and the only workaround right now
is to fix the sample rate to 44.1kHz.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6325ea4..b794cba 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -12845,6 +12845,27 @@
#define alc269_pcm_digital_playback alc880_pcm_digital_playback
#define alc269_pcm_digital_capture alc880_pcm_digital_capture
+static struct hda_pcm_stream alc269_44k_pcm_analog_playback = {
+ .substreams = 1,
+ .channels_min = 2,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_44100, /* fixed rate */
+ /* NID is set in alc_build_pcms */
+ .ops = {
+ .open = alc880_playback_pcm_open,
+ .prepare = alc880_playback_pcm_prepare,
+ .cleanup = alc880_playback_pcm_cleanup
+ },
+};
+
+static struct hda_pcm_stream alc269_44k_pcm_analog_capture = {
+ .substreams = 1,
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_44100, /* fixed rate */
+ /* NID is set in alc_build_pcms */
+};
+
/*
* BIOS auto configuration
*/
@@ -13060,9 +13081,16 @@
setup_preset(spec, &alc269_presets[board_config]);
spec->stream_name_analog = "ALC269 Analog";
- spec->stream_analog_playback = &alc269_pcm_analog_playback;
- spec->stream_analog_capture = &alc269_pcm_analog_capture;
-
+ if (codec->subsystem_id == 0x17aa3bf8) {
+ /* Due to a hardware problem on Lenovo Ideadpad, we need to
+ * fix the sample rate of analog I/O to 44.1kHz
+ */
+ spec->stream_analog_playback = &alc269_44k_pcm_analog_playback;
+ spec->stream_analog_capture = &alc269_44k_pcm_analog_capture;
+ } else {
+ spec->stream_analog_playback = &alc269_pcm_analog_playback;
+ spec->stream_analog_capture = &alc269_pcm_analog_capture;
+ }
spec->stream_name_digital = "ALC269 Digital";
spec->stream_digital_playback = &alc269_pcm_digital_playback;
spec->stream_digital_capture = &alc269_pcm_digital_capture;