[SOLVED] Headphone - Speaker dependence

[pixnaps]

Hi, my headphones only work when the external speakers are ALSO going. If I mute the front, the headphones also make no sound. (Oddly, it was all working fine last night, after I tried various fixes for sound problems.)

N.B. This is when my headphones 'switch' is ticked on in AlsaMixer. When the box is unticked, the headphones don't work at all.

I have a Toshiba Satellite A135-S4527 laptop.

Other possibly relevant info:

**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC861VD Analog [ALC861VD Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0

pixnaps@rc-laptop:~$ head -n 1 /proc/asound/card0/codec*
==> /proc/asound/card0/codec#0 <==
Codec: Realtek ALC861-VD

==> /proc/asound/card0/codec#1 <==
Codec: Generic 11c1 ID 1040
pixnaps@rc-laptop:~$

I added the alsa-base line "options snd-hda-intel model=3stack" as instructed here, given this info:
ALC861VD/660VD
3stack 3-jack
3stack-dig 3-jack with SPDIF OUT
6stack-dig 6-jack with SPDIF OUT
3stack-660 3-jack (for ALC660VD)
3stack-660-digout 3-jack with SPDIF OUT (for ALC660VD)
lenovo Lenovo 3000 C200
dallas Dallas laptops
hp HP TX1000
auto auto-config reading BIOS (default)

And I followed the instructions here, but to no avail.

Help?

[Pjotr123]

Try what alsamixergui can do:
http://ubuntutip.googlepages.com/sound
(number 2 )

[pixnaps]

Yeah, that doesn't help. I've got all channels open. Note that the headphones DO work, but they fail to mute the speakers. (I see others have had the same problem here.)

[pixnaps]

Fixed! I just needed to replace my '3stack' alsa-base line with the following:

options snd-hda-intel position_fix=1 model=lenovo