[Bug 408903] Re: Does not handle microphone mute button (KEY_MICMUTE)

[Joseph A]

Thinkpad T520 w NVS 4200M
Ubuntu 12.10

Fails to work as well.

Fixed it by patching thinkpad_acpi and recompiling (don't know if it's
necessary).  Someone posted http://askubuntu.com/questions/125367
/enabling-mic-mute-button-and-light-on-lenovo-thinkpads/279135#279135
before I actually managed to get this to work.

The first answer gets the idea of it but there were some minor problems
when I tired to use it... ie nothing happened.  There was a minor
problem with the bash script variables but works with some tweeking.  I
tested while running with sudo but won't know until I restart.

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https://bugs.launchpad.net/bugs/408903

Title:
  Does not handle microphone mute button (KEY_MICMUTE)

Status in OEM Priority Project:
  Triaged
Status in OEM Priority Project precise series:
  Confirmed
Status in OEM Priority Project raring series:
  Triaged
Status in “gnome-settings-daemon” package in Ubuntu:
  Triaged
Status in “udev” package in Ubuntu:
  Triaged
Status in “xserver-xorg-input-evdev” package in Ubuntu:
  Triaged
Status in “gnome-settings-daemon” source package in Raring:
  Triaged
Status in “udev” source package in Raring:
  Triaged
Status in “xserver-xorg-input-evdev” source package in Raring:
  Triaged

Bug description:
  Ubuntu 9.04

  Pressing the new microphone mute button does not do anything.  It
  should toggle the mute on the current capture device and toggle an led
  that is part of the button.

  acpi_listen output:

  ibm/hotkey HKEY 00000080 0000101b

  
  xev output:

  MappingNotify event, serial 34, synthetic NO, window 0x0,
      request MappingKeyboard, first_keycode 8, count 248  

  MappingNotify event, serial 34, synthetic NO, window 0x0,
      request MappingKeyboard, first_keycode 8, count 247

  KeyPress event, serial 34, synthetic NO, window 0x3400001,
      root 0x118, subw 0x0, time 10334714, (317,-162), root:(322,207),
      state 0x0, keycode 248 (keysym 0x0, NoSymbol), same_screen YES,
      XLookupString gives 0 bytes:
      XmbLookupString gives 0 bytes:
      XFilterEvent returns: False

  KeyRelease event, serial 34, synthetic NO, window 0x3400001,
      root 0x118, subw 0x0, time 10334714, (317,-162), root:(322,207),
      state 0x0, keycode 248 (keysym 0x0, NoSymbol), same_screen YES,
      XLookupString gives 0 bytes:
      XFilterEvent returns: False

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