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Anyone else ever encountered issues with low sound?

Installed a fresh new install of ubuntu 12.04 x64 alongside Win7. Everything runs great except for the sound.

Computer is a hp pavilion p7-1227c.

What i've tried:

Also, this is my alsa output: http://www.alsa-project.org/db/?f=de7e2bfb645f4fa5c2687ad6742d7ccdfb8fe6ec

Any ideas? I just installed a new install of ubuntu 12.04 on this particular computer.

aplay -l:

**** List of PLAYBACK Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 0: STAC92xx Analog [STAC92xx Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 1: STAC92xx Digital [STAC92xx Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

lsmod | grep snd

snd_hda_codec_idt 70795 1 snd_hda_intel 33773 3 snd_hda_codec 127706 2 snd_hda_codec_idt,snd_hda_intel snd_hwdep 13668 1 snd_hda_codec snd_pcm
97188 2 snd_hda_intel,snd_hda_codec snd_seq_midi 13324 0 snd_rawmidi 30748 1 snd_seq_midi snd_seq_midi_event
14899 1 snd_seq_midi snd_seq 61896 2 snd_seq_midi,snd_seq_midi_event snd_timer 29990 2 snd_pcm,snd_seq snd_seq_device 14540 3 snd_seq_midi,snd_rawmidi,snd_seq snd 78855 15 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device soundcore 15091 1 snd snd_page_alloc 18529 2 snd_hda_intel,snd_pcm

lspci -v | grep -A7 -i "audio"

00:14.2 Audio device: Advanced Micro Devices [AMD] Hudson Azalia Controller (rev 01)
    Subsystem: Hewlett-Packard Company Device 2ae0
    Flags: bus master, slow devsel, latency 32, IRQ 16
    Memory at feb40000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd-hda-intel
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Filed a support request here too: bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1041322 –  chrisjlee Aug 24 '12 at 18:16

2 Answers 2

up vote 2 down vote accepted

I've been working on this problem for a couple of days now. I have a work around posted in this forum :

Bug #1041322

It looks like the HDA sound driver is not setting up the EAPD bit correctly when it detects speakers plugged into the "green" jack. If you are just using stereo speakers, plugging them into the Orange "Center" channel seems to get around this. Otherwise there is a hack you can do with the a utility (hda-verb) described in my post to set the EAPD bit to the correct state.

Next step is to see why the driver does this in the first place.

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Thanks. So just plugging it into the orange jack in the rear of the computer should solve this for now? Also, would i have to do anything for the orange jack to work? –  chrisjlee Oct 13 '12 at 20:40
    
In my tests, plugging my stereo speakers into the orange center channel jack works with no other changes required. Of coarse, you can't use a 5.1 sound system that way but its better than nothing. Try it and see ? Report back here to either way please ? –  waterwingz Oct 13 '12 at 21:49

Fixed in the upstream ALSA package and updated as of release 12.10. Sound on this PC / motherboard not works properly "out of the box".

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