previous driver allow you to change the volume from audio output by pcm
loopback playback volume but the current driver set this gain to 0dB
Node 0x21 [Audio Mixer] wcaps 0x20050b: Stereo Amp-In
Control: name="PCM Loopback Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=5, ofs=0
Control: name="PCM Loopback Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=5, ofs=0
Control: name="Front Mic Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=3, ofs=0
Control: name="Front Mic Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=3, ofs=0
Control: name="Rear Mic Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=1, ofs=0
Control: name="Rear Mic Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=1, ofs=0
Control: name="Line Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=2, ofs=0
Control: name="Line Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=2, ofs=0
Amp-In caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
Amp-In vals: [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80]
Power states: D0 D1 D2 D3
Power: setting=D0, actual=D0
Connection: 5
0x2c 0x2b 0x2a 0x29 0x28
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https://bugs.launchpad.net/bugs/1365769
Title:
[G41MT-S2P, VIA VT2020, Pink Mic, Rear] No sound at all
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