No audio on headphones

[index123]

Hi, I'm not sure if this is the right section to consult this. After I installed KXStudio on my ASUS K55VD laptop, the laptop speakers are working fine but my headphones does not output sounds. I tried to play around on alsamixer but no luck. I'm out of options. Please go easy on me I'm new to linux. Any help will be appreciated.

[CrocoDuck]

Sometimes it is tricky. On my laptop all suddenly the headphone started working in quirky way... go figure.

Anyway, let's look first at your soundcards:

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aplay -l

[index123]

This was the result:

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**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC270 Analog [ALC270 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 1: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
  Subdevices: 7/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7

[CrocoDuck]

Ok, nothing too quirky. You got analog and HDMI. I am wondering whether the loopbacks are doing something weird.

I have stumbled across this problem on a friend's laptop years ago. It was an Asus as well and I remember it was a pretty common. I think the documentation I followed was this:

https://ubuntuforums.org/showthread.php?t=2022151
https://ubuntuforums.org/showthread.php ... st11418413
https://help.ubuntu.com/community/HdaIntelSoundHowto
https://ubuntuforums.org/showthread.php?t=1043568

Feel free to have a look. I think I will go through tonight and be back with something to suggest to you. Be aware that the pages are kinda old, so maybe something needs to be adjusted.

[CrocoDuck]

Hi there! Your Codec seems to ALC270. We could see if we find any more info about it by doing this:

List contents of /proc/asound:

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ls /proc/asound

There will be a file called cards with some basic info:

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cat /proc/asound/cards

There should be also at least two files of the tipe cardX, where X is a number. I think you will see card0 and card1. Get the codec info for each:

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cat /proc/asound/card0/codec* | grep Codec
cat /proc/asound/card1/codec* | grep Codec

The first thing I would try is to mess /etc/modprobe.d/alsa-base.conf. On a terminal, using your favourite text editor (maybe gedit, leafpad, whatever):

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sudo gedit /etc/modprobe.d/alsa-base.conf

Add this line:

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options snd-hda-intel model=asus

Save and reboot. See how it goes.

There are others model arguments you could try. I think a quick way to test them is by loading the kernel module with the model parameter:

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modprobe snd_hda_intel model=asus

I would also like to see the output of this:

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lspci -vnn

[index123]

It's so weird that it works now. After adding

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options snd-hda-intel model=asus

on the conf file and rebooting, it didn't work. And I just left it and do other things on windows. Then I decided to try booting on linux again, surprisingly it worked. I think adding those lines made it work after shutdown. Anyway, thank you all so much.