Fix the sound card of the Asus X77J to output 5.1 sound with ALSA

fixX77JHDA.sh

rclocal.10-fixX77JHDA() {
  # Fix the sound card configuration to output 5.1 with ALSA.
  local snddev=/dev/snd/hwC0D0
  [[ -e "$snddev" ]] &&
  
  # Source: 0x0 - Front
  #         0x1 - LFE / Center
  #         0x2 - Rear
  
  # 1st jack (0x19)  will be rear channels (green)
  # Set source
  hda-verb "$snddev" 0x19 SET_CONNECT_SEL 0x2 2> /dev/null &&
  # Set to output mode
  hda-verb "$snddev" 0x19 SET_PIN_WIDGET_CONTROL 0x44 2> /dev/null &&
  # Unmute
  hda-verb "$snddev" 0x19 0x3a0 0x0 2> /dev/null &&
  hda-verb "$snddev" 0x19 0x390 0x0 2> /dev/null &&
  
  # 2nd jack (0x1B) will be front channels (black)
  # This one is already properly configured.
  
  # 3rd jack (0x21) will be center / LFE channels (pink)
  # Set source
  hda-verb "$snddev" 0x21 SET_CONNECT_SEL 0x1 2> /dev/null &&
  # Set to output mode
  hda-verb "$snddev" 0x21 SET_PIN_WIDGET_CONTROL 0x40 2> /dev/null &&
  # Unmute
  hda-verb "$snddev" 0x21 0x3a0 0x0 2> /dev/null &&
  hda-verb "$snddev" 0x21 0x390 0x0 2> /dev/null
}