Take a look at the computer chassis 's manual and motherboard 's manual
Misc = NO_PRESENCE
this mean that your front audio panel hp and mic does not have jack
detection
http://www.intel.com/support/motherboards/desktop/sb/cs-015851.htm
8. Front panel audio connector (10-1 pin AAFP)
• If you want to connect a high-definition front panel audio module to this
connector, set the Front Panel Select item in the BIOS setup to [HD Audio]; if
you want to connect an AC'97 front panel audio module to this connector, set
the item to [AC 97]. By default, this connector is set to [HD].
Refer to 3.6.3 Onboard Devices Configuration
HDAudio Controller [Enabled]
Allows you to enable or disable the HD Audio controller.
Configuration options: [Disabled] [Enabled]
Front Panel Select [HD Audio]
Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97
or high-definition audio depending on the audio standard that the front panel
audio module supports.
[AC 97] Sets the front panel audio connector (AAFP) mode to legacy AC’97
[HD Audio] Sets the front panel audio connector (AAFP) mode to high definition
audio.
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https://bugs.launchpad.net/bugs/1207364
Title:
no sound since upgrade to 13.04 [System Product Name, Realtek ALC892,
Green Line Out, Rear] No sound at all
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