Are you sure that T410 support Sennheiser HD280pro headphones ? Does combo audio jack mean those headset for mobile phone which have mic and headphone ?
https://lists.launchpad.net/ubuntu-audio-dev/msg00205.html You can try hda jack sense test or hda-verb to check whether both jack detect of hp and mic ( 0x19 and 0x1b) or only one of them can be used for jack detect sudo hda-verb /dev/snd/hwC0D0 0x19 get_pin_sense 0 sudo hda-verb /dev/snd/hwC0D0 0x1b get_pin_sense 0 Node 0x19 [Pin Complex] wcaps 0x400581: Stereo Pincap 0x0000001c: OUT HP Detect Pin Default 0x042110f0: [Jack] HP Out at Ext Right Conn = 1/8, Color = Black DefAssociation = 0xf, Sequence = 0x0 Pin-ctls: 0x00: Unsolicited: tag=37, enabled=1 Power states: D0 D1 D2 D3 D3cold Power: setting=D0, actual=D0 Connection: 2 0x10* 0x11 Node 0x1b [Pin Complex] wcaps 0x400581: Stereo Pincap 0x00011334: IN OUT EAPD Detect Vref caps: HIZ 50 80 EAPD 0x2: EAPD Pin Default 0x04a110f0: [Jack] Mic at Ext Right Conn = 1/8, Color = Black DefAssociation = 0xf, Sequence = 0x0 Pin-ctls: 0x00: VREF_HIZ Unsolicited: tag=38, enabled=1 Power states: D0 D1 D2 D3 D3cold Power: setting=D0, actual=D0 Connection: 2 0x10* 0x11 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/658368 Title: headphone jack doesn't work on T410s To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/658368/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
