tablet don't need independent headphone and the driver should not create device
0 and device 2 with same audio output 0x03
Node 0x03 [Audio Output] wcaps 0x405: Stereo Amp-Out
Control: name="Headphone Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Device: name="AD1984 Analog", type="Audio", device=0
Device: name="AD1984 Alt Analog", type="Audio", device=2
APLAY
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD1984 Analog [AD1984 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 2: AD1984 Alt Analog [AD1984 Alt Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
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https://bugs.launchpad.net/bugs/1308551
Title:
[7767A4U, Analog Devices AD1984, Speaker, Internal] No sound at all
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