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
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:  Power Management version 2 Capabilities:  MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities:  Express Root Complex Integrated Endpoint, MSI 00 Capabilities:  Virtual Channel Capabilities:  Root Complex Link Kernel driver in use: HDA Intel Kernel modules: snd-hda-intel