the deskstop users are suffered from the side effect of copy front since
stereo is copied to all speakers
can alsa only enabled this feature for notebook ?
/* surrounds */
for (i = 1; i < mout->num_dacs; i++) {
if (chs >= (i + 1) * 2) /* independent out */
snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
i * 2, format);
else if (!mout->no_share_stream) /* copy front */
snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
0, format);
}
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https://bugs.launchpad.net/bugs/1040873
Title:
[N56VZ, Realtek ALC663, Black Headphone Out, Right] No sound at all:
Subwoofer not working
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