when you plugged in headphone , pa 2.0 use hda headphone jack kcontrol
to detect the headphone jack state
Node 0x1d [Pin Complex] wcaps 0x40058d: Stereo Amp-Out
Control: name="Headphone Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Control: name="Independent HP", index=0, device=0
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x00]
Pincap 0x0000233c: IN OUT HP Detect
Vref caps: HIZ 50 100
Pin Default 0x0221411f: [Jack] HP Out at Ext Front
Conn = 1/8, Color = Green
DefAssociation = 0x1, Sequence = 0xf
Misc = NO_PRESENCE
Pin-ctls: 0xc0: OUT HP VREF_HIZ
Unsolicited: tag=00, enabled=0
Power states: D0 D1 D2 D3
Power: setting=D0, actual=D0
Connection: 2
0x16 0x25*
do your computer chassis have a hda frony audio panel which support jack detect
?
Misc = NO_PRESENCE mean no presence detection circuit in front audio
panel
ports:
analog-output: Analog Output (priority 9900, available: unknown)
properties:
analog-output-headphones: Headphones (priority 9000, available:
unknown)
properties:
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1074060
Title:
[To Be Filled By O.E.M., VIA VT1705, Green Headphone Out, Front] No
sound at all
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1074060/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
