max volume warning for headphones not working on all devices

Seems PA is getting the correct active port:

$ pactl list sinks
Sink #0
 State: SUSPENDED
 Name: sink.primary
 Description: Droid sink primary
 Driver: module-droid-card.c
 Sample Specification: s16le 2ch 44100Hz
 Channel Map: front-left,front-right
 Owner Module: 4
 Mute: no
 Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
         balance 0.00
 Base Volume: 65536 / 100% / 0.00 dB
 Monitor Source: sink.primary.monitor
 Latency: 0 usec, configured 0 usec
 Flags: HARDWARE DECIBEL_VOLUME LATENCY
 Properties:
  device.description = "Droid sink primary"
  device.class = "sound"
  device.form_factor = "internal"
  droid.hw_module = "primary"
  device.icon_name = "audio-card"
 Ports:
  output-earpiece: Output to earpiece (priority: 200)
  output-speaker: Output to speaker (priority: 300)
  output-wired_headset: Output to wired headset (priority: 400, not available)
  output-wired_headphone: Output to wired headphone (priority: 400, not available)
  output-bluetooth_sco: Output to bluetooth sco (priority: 100)
  output-sco_headset: Output to sco headset (priority: 100)
  output-sco_carkit: Output to sco carkit (priority: 100)
  output-aux_digital: Output to aux digital (priority: 100)
  output-analog_dock_headset: Output to analog dock headset (priority: 100)
  output-digital_dock_headset: Output to digital dock headset (priority: 100)
  output-fm_tx: Output to fm tx (priority: 200)
  output-speaker+wired_headphone: Output to speaker+wired headphone (priority: 100)
  output-parking: Parking port (priority: 50)
 Active Port: output-speaker
 Formats:
  pcm

Sink #1
 State: SUSPENDED
 Name: sink.fake.sco
 Description: Null Output
 Driver: module-null-sink.c
 Sample Specification: s16le 1ch 8000Hz
 Channel Map: mono
 Owner Module: 5
 Mute: no
 Volume: mono: 65536 / 100% / 0.00 dB
         balance 0.00
 Base Volume: 65536 / 100% / 0.00 dB
 Monitor Source: sink.fake.sco.monitor
 Latency: 0 usec, configured 0 usec
 Flags: DECIBEL_VOLUME LATENCY
 Properties:
  device.description = "Null Output"
  device.class = "abstract"
  device.icon_name = "audio-card"
 Formats:
  pcm

Then plugging in a headphone goes to:

$ pactl list sinks
Sink #0
 State: SUSPENDED
 Name: sink.primary
 Description: Droid sink primary
 Driver: module-droid-card.c
 Sample Specification: s16le 2ch 44100Hz
 Channel Map: front-left,front-right
 Owner Module: 4
 Mute: no
 Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
         balance 0.00
 Base Volume: 65536 / 100% / 0.00 dB
 Monitor Source: sink.primary.monitor
 Latency: 0 usec, configured 0 usec
 Flags: HARDWARE DECIBEL_VOLUME LATENCY
 Properties:
  device.description = "Droid sink primary"
  device.class = "sound"
  device.form_factor = "internal"
  droid.hw_module = "primary"
  device.icon_name = "audio-card"
 Ports:
  output-earpiece: Output to earpiece (priority: 200)
  output-speaker: Output to speaker (priority: 300)
  output-wired_headset: Output to wired headset (priority: 400, not available)
  output-wired_headphone: Output to wired headphone (priority: 400, available)
  output-bluetooth_sco: Output to bluetooth sco (priority: 100)
  output-sco_headset: Out...

This bug was fixed in the package indicator-sound - 12.10.2+15.04.20150413-0ubuntu1

---------------
indicator-sound (12.10.2+15.04.20150413-0ubuntu1) vivid; urgency=medium

  [ CI Train Bot ]
  * New rebuild forced.

  [ Ricardo Salveti de Araujo ]
  * volume-control-pulse: only set volume if value is indeed different
    and reason not from AS (LP: #1443005)

  [ Ted Gould ]
  * Fix stream property lookup to reliably signal multimedia streams
    (LP: #1436021)
 -- CI Train Bot <email address hidden> Mon, 13 Apr 2015 06:02:32 +0000