I have an Asus K50IJ (Bestbuy) laptop and have issues with my sound. Speakers themselves work fine but when I plug into the headphone jack it auto mutes the front channel and no sounds comes out of either the speakers or the headphones. If I then unmute the channel I get sound from both the speakers and the headphones.

alsamixer shows the Headphone channel as all grayed out.

/etc/modprobe.d/alsa-base.conf I have tried snd-hda-intel model="asus-laptop" and snd-hda-intel model="asus"

In Sound Preferences I have gone to output and changed the Connector to 'Analog Headphones' that results in no sound from either speakers or headphones.

As one forum suggested I tried to comment out blacklist snd_pcsp in the blacklist.conf which resulted in no change.

lspci -v shows:

00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
    Subsystem: Santa Cruz Operation Device 1043
    Flags: bus master, fast devsel, latency 0, IRQ 45
    Memory at fe9f4000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: [50] Power Management version 2
    Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
    Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
    Capabilities: [100] Virtual Channel
    Capabilities: [130] Root Complex Link
    Kernel driver in use: HDA Intel
    Kernel modules: snd-hda-intel