try
sudo ./hda-verb /dev/snd/hwC0D0 0x3e 0xf00 0x9
do it return following wcaps ?
nid = 0x3e, verb = 0xf00, param = 0x9
value = 0x200500
sudo ./hda-verb /dev/snd/hwC0D0 0x3e 0xf00 0xe
do it return number of connection
nid = 0x3e, verb = 0xf00, param = 0xe
value = 0x1
sudo ./hda-verb /dev/snd/hwC0D0 0x3e 0xf02 0x0
di it return the nodes in the connection list
nid = 0x3e, verb = 0xf02, param = 0x0
value = 0x1c
repeat the above test wit node 0x3d
Node 0x3d [Audio Selector] wcaps 0x300501: Stereo
Power states: D0 D1 D2 D3
Power: setting=D0, actual=D0
Connection: 2
0x08* 0x09
Node 0x3e [Audio Mixer] wcaps 0x200500: Mono
Power states: D0 D1 D2 D3
Power: setting=D0, actual=D0
Connection: 1
0x1c
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https://bugs.launchpad.net/bugs/1274401
Title:
Internal sub-woofer on Asus G75VW laptop doesn't work.
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