https://launchpadlibrarian.net/121871263/alsainfo.txt
do widge 0x3e has amp-out for subwoofer volume control ?
Nope. The sound path I got finally are : 08/34/14/24/00 08/21/14/24/00 09/3c/1c/33/00 08/35/15/25/00 08/21/15/25/00
So, front on 0x08, shared with HP, and subwoofer on 0x09. Volumes are on
0x08 and 0x09 controls,
afaik there are no more volume controls there.
how about the channel map ?
http://git.kernel.org/?p=linux/kernel/git/tiwai/sound.git;a=commitdiff;h=be8...
do your patched driver really work with pulseaudio 2.0 if there is no headphone playback volume controls ?
Simple mixer control 'Independent HP',0 Capabilities: enum Items: 'OFF' 'ON' Item0: 'OFF'
Simple mixer control 'Headphone',0 Capabilities: pvolume pswitch penum Playback channels: Front Left - Front Right Limits: Playback 0 - 42 Mono: Front Left: Playback 42 [100%] [0.00dB] [on] Front Right: Playback 42 [100%] [0.00dB] [on] Simple mixer control 'Speaker',0 Capabilities: pvolume pswitch penum Playback channels: Front Left - Front Right Limits: Playback 0 - 42 Mono: Front Left: Playback 42 [100%] [0.00dB] [on] Front Right: Playback 42 [100%] [0.00dB] [on]
if independent headphone is ON, two different audio stereo streams can play using device 0 (speaker) and device 2 (headphone)
dac 0x08 cannot be shared beween headphone 0x25 and speaker 0x24
do a notebook really need independent headphone ?
http://git.kernel.org/?p=linux/kernel/git/tiwai/sound.git;a=commitdiff;h=a2a...
0: PCH [HDA Intel PCH], device 0: VT1802 Analog [VT1802 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 1: VT1802 Digital [VT1802 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 2: VT1802 HP [VT1802 HP] Subdevices: 1/1 Subdevice #0: subdevice #0