No sound

[Hadaka]

Try this

echo "options snd-hda-intel model=asus" | sudo tee -a /etc/modprobe.d/alsa-base.conf
if that doesnt work..and hopefully it will.
be sure to gedit /etc/modprobe.d/alsa-base.conf

and remove that added line.
hope this helps

[Bachey]

I ran the command, it added the line, I restarted my pc, but it still didn't work. I wonder what the problem is.

[Hadaka]

Its odd that everything else seems to work except the headphones and they do
work with windows. Lets take a peek at the trigger bit and see if its zero'd out.

cat /proc/asound/card0/codec* | grep -iA4 Jack

[codingman]

check in gnome alsa mixer whether the microphone is on mute

[Hadaka]

try this.

first gedit /etc/modprobe.d/alsa-base.conf
then replace
options snd-hda-intel model=asus
with
options snd-hda-intel model=m4a785td-v position_fix=0

your machine must be fairly new as your chipset was not on this list


http://doc.ubuntu-fr.org/audio_intel_hda#acer

so you may have to experiment and change the model= "X"
go slow..be patient. and reboot after each attempt.

[Bachey]

Output of that code:

Pin Default 0x01011012: [Jack] Line Out at Ext Rear
    Conn = 1/8, Color = Black
    DefAssociation = 0x1, Sequence = 0x2
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=20, enabled=1
--
  Pin Default 0x01a19036: [Jack] Mic at Ext Rear
    Conn = 1/8, Color = Pink
    DefAssociation = 0x3, Sequence = 0x6
  Pin-ctls: 0x21: IN VREF_50
  Unsolicited: tag=20, enabled=1
--
  Pin Default 0x0181303e: [Jack] Line In at Ext Rear
    Conn = 1/8, Color = Blue
    DefAssociation = 0x3, Sequence = 0xe
  Pin-ctls: 0x20: IN VREF_HIZ
  Unsolicited: tag=20, enabled=1
--
  Pin Default 0x01014010: [Jack] Line Out at Ext Rear
    Conn = 1/8, Color = Green
    DefAssociation = 0x1, Sequence = 0x0
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=20, enabled=1
--
  Pin Default 0x0221401f: [Jack] HP Out at Ext Front
    Conn = 1/8, Color = Green
    DefAssociation = 0x1, Sequence = 0xf
  Pin-ctls: 0xc0: OUT HP VREF_HIZ
  Unsolicited: tag=21, enabled=1
--
  Pin Default 0x02a19038: [Jack] Mic at Ext Front
    Conn = 1/8, Color = Pink
    DefAssociation = 0x3, Sequence = 0x8
  Pin-ctls: 0x21: IN VREF_50
  Unsolicited: tag=20, enabled=1
--
  Pin Default 0x074311f0: [Jack] SPDIF Out at Ext Rear Panel
    Conn = ATAPI, Color = Black
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT
--
  Pin Default 0x074521f0: [Jack] SPDIF Out at Ext Rear Panel
    Conn = Optical, Color = Grey
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT
--
  Pin Default 0x01016011: [Jack] Line Out at Ext Rear
    Conn = 1/8, Color = Orange
    DefAssociation = 0x1, Sequence = 0x1
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=20, enabled=1
--
  Pin Default 0x01012014: [Jack] Line Out at Ext Rear
    Conn = 1/8, Color = Grey
    DefAssociation = 0x1, Sequence = 0x4
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=20, enabled=1

In gnome alsamixer microphone is not muted, and I also changed the alsa configuration as you recommended, but still no luck. However I hear a little tick sound in my headphone at bootup, but later it is mute. (It's not a hardware problem, because it still works under windows)

[Hadaka]

I think i see the problem. notice how every thing else is tag20..except HP
HP is the headphone. change that to 20 instead of 21 and see if that fixes it.

Pin Default 0x0221401f: [Jack] HP Out at Ext Front Conn = 1/8, Color = Green DefAssociation = 0x1, Sequence = 0xf Pin-ctls: 0xc0: OUT HP VREF_HIZ Unsolicited: tag=21, enabled=1 -- Pin Default 0x02a19038: [Jack] Mic at Ext Front Conn = 1/8, Color = Pink DefAssociation = 0x3, Sequence = 0x8 Pin-ctls: 0x21: IN VREF_50 Unsolicited: tag=20, enabled=1

[Hadaka]

sorry about the jumbeled mess i posted..i copied and pasted some of your
output and it strung it all together. I built a quick file from you last post
of settings and then grep'd it for "tag values"

Unsolicited: tag=20, enabled=1
Unsolicited: tag=20, enabled=1
Unsolicited: tag=20, enabled=1
Unsolicited: tag=20, enabled=1
Unsolicited: tag=21, enabled=1
Unsolicited: tag=20, enabled=1
Unsolicited: tag=20, enabled=1
Unsolicited: tag=20, enabled=1
this was the result...and the only tag 21 is the HP tag.
this has been interesting...i hope this is the fix let me know.

[Bachey]

Thanks, now i get what the problem is. But well, I'm kinda noob, how do I change it?

[Hadaka]

sorry about just now getting back to you...mem day and all..got busy.
anyway. after looking at the settings in my system..im not so sure that 21 tag in yours is the problem. From all the research ive done on this..it seems to be an old bug..but only with 64bit not 32. and the fix was getting the correct model and position_fix=
values correct. so before you attempt to change that tag value lets try a different
fix= value..its going to be 0,1 or 2 so you will have to experiment..it should be currently
set at 0.

thus far you entered.

1. #"options snd-hda-intel model=asus"#
2. #"options snd-hda-intel model=m4a785td-v position_fix=0"#

try to gedit /etc/modprobe.d/alsa-base.conf

again and remove the first line...if its still there
then change options snd-hda-intel model=m4a785td-v position_fix=0
to: options snd-hda-intel model=auto position_fix=1

reboot and test....if it doesnt work change it to fix=2
you can also experiment and change the model to ..asus...m4a....785 and try each fix=
value....0,1 or 2 with each model change. Its going to take a little time and may be a
bit frustrating but there is no simple fix i can find...so be patient,take your time.