7.3.4.9 Pin Capabilities The Pin Capabilities parameter returns a bit field describing the capabilities of the Pin Complex Widget.
Output Capable indicates whether the pin complex supports output. If Output Capable is a 1, the pin is capable of output. Headphone Drive Capable indicates that the pin has an amplifier with sufficient current drive to drive headphones. If Output Capable is a 0, then this bit has no meaning and must be 0. Presence Detect Capable indicates whether the pin complex can perform presence detect to determine whether there is anything plugged in. Presence detect does not indicate what is plugged in, only that something is plugged in. Trigger Required indicates whether a trigger is required for an impedance measurement (see Section 7.3.3.15). Impedance Sense Capable indicates whether the pin complex supports impedance sense on the attached peripheral to determine what it is. More accurate (possibly sequenced) forms of peripheral discrimination may be supported independent of this capability; however, if this bit is a 1, then the codec must support at least the basic impedance test as described in Section 7.3.3.15. the trigger is required for an impedance measurement but your codec does not support Impsense you can disable it by hint trigger_sense=0 https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/Documentation/sound/alsa/HD-Audio.txt - jack_detect (bool): specify whether the jack detection is available at all on this machine; default true - inv_jack_detect (bool): indicates that the jack detection logic is inverted - trigger_sense (bool): indicates that the jack detection needs the explicit call of AC_VERB_SET_PIN_SENSE verb - inv_eapd (bool): indicates that the EAPD is implemented in the inverted logic Node 0x1b [Pin Complex] wcaps 0x40058f: Stereo Amp-In Amp-Out Control: name="Headphone Playback Switch", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Control: name="Front Headphone Jack", index=0, device=0 Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0 Amp-In vals: [0x00 0x00] Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1 Amp-Out vals: [0x00 0x00] Pincap 0x0001373e: IN OUT HP EAPD Detect Trigger Vref caps: HIZ 50 GRD 80 100 EAPD 0x2: EAPD Pin Default 0x02214020: [Jack] HP Out at Ext Front Conn = 1/8, Color = Green DefAssociation = 0x2, Sequence = 0x0 Pin-ctls: 0xc0: OUT HP VREF_HIZ Unsolicited: tag=01, enabled=1 Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Connection: 5 0x0c 0x0d 0x0e 0x0f 0x26* -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/874535 Title: Volume Slider Jumps, due to rapidly changing hardware jack sense state To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/874535/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
