Can't change sound volume of my laptop

Hello.

I have recently installed Leap 42.3 on my Dell XPS 15, and everything seems to be right except for the fact that I cannot change the sound volume level. Basically, I do have sound (so apparently that is working correctly), and I can move the sound indicator level using the keyboard, but no matter what the volume level does not change. Also, I don’t know if this is a related problem, but when I plugin my headphones they don’t work, and my laptop don’t switch of the speaker.

This is my first time using openSUSE, so I don’t really know what to do. I have checked some posts of people with sound problems, but most of them are related with the lack of sound.

Some information/results of commands that might be helpful:


$ head -n 1 /proc/asound/card0/codec*
==> /proc/asound/card0/codec#0 <==
Codec: Realtek ALC3266

==> /proc/asound/card0/codec#2 <==
Codec: Intel Kabylake HDMI


$ lsmod | grep snd
snd_hda_codec_hdmi     57344  1 
snd_hda_codec_realtek    94208  1 
snd_hda_codec_generic    81920  1 snd_hda_codec_realtek
snd_hda_intel          45056  3 
snd_hda_codec         147456  4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
snd_hda_core           81920  5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
snd_hwdep              16384  1 snd_hda_codec
snd_pcm               135168  4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
snd_timer              36864  1 snd_pcm
snd                    90112  14 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
soundcore              16384  1 snd


$ rpm -qa | grep alsa
alsa-plugins-pulse-1.1.4-1.1.x86_64
alsa-plugins-1.1.4-1.1.x86_64
alsa-1.1.4.1-1.1.x86_64
alsa-utils-1.1.4-1.1.x86_64
alsa-oss-1.0.28-8.3.x86_64


$ rpm -qa | grep pulse
pulseaudio-utils-9.0-5.1.x86_64
alsa-plugins-pulse-1.1.4-1.1.x86_64
pulseaudio-module-x11-9.0-5.1.x86_64
libpulse-mainloop-glib0-9.0-5.1.x86_64
pulseaudio-9.0-5.1.x86_64
pulseaudio-module-bluetooth-9.0-5.1.x86_64
pulseaudio-module-zeroconf-9.0-5.1.x86_64
libpulse0-9.0-5.1.x86_64
pulseaudio-module-gconf-9.0-5.1.x86_64
pulseaudio-bash-completion-9.0-5.1.x86_64
mpg123-pulse-1.25.3-3.1.x86_64
pulseaudio-lang-9.0-5.1.noarch
pulseaudio-module-lirc-9.0-5.1.x86_64


$ rpm -q libasound2
libasound2-1.1.4.1-1.1.x86_64


$ cat /etc/modprobe.d/50-sound.conf
options snd slots=snd-hda-intel
# nS1_.nzbEQF6aDG6:Intel Corporation
alias snd-card-0 snd-hda-intel

And finally the result of executing /usr/sbin/alsa-info.sh.

http://www.alsa-project.org/db/?f=c268e7a2e065f4573e5512a26db6d624aab34165
I really appreciate any help or advice that you could give me.

Sorry if this is teaching grandmother to suck eggs, have you tried configuing the sound channels? You may find you are configured to use HDMI rather than analog stereo. Right clicking on volume control normally opens up configuration options.

Hey, thank you for your response.

I have checked in the gnome sound settings, and the profile is set to Analog Stereo Output. Also, I checked using pavucontrol and the profile there is Analog Stereo Duplex. So, as far as I know I am using the analog stereo.

Something that I have noticed is that although I cannot change the volume directly, if I set the volume using, for example, the sound configuration panel and then I restart the computer I get this sound level. But I am not 100% sure about this (it is hard to meassure the real sound level only by hearing).