How to configure 5.1 sound in opensuse tumbleweed

The steps that I have done so far:
1.From Yast->Sound module I have enabled my sound card (6 Series/C200 Series Chipset Family High Definition Audio Controller).
2. In /etc/pulse/daemon.conf I have put these two lines
default-sample-channels = 6
default-channel-map = front-left,front-center,front-right,rear-left,rear-right,subwoofer
3. In /etc/pulse/ and /etc/pulse/ I have put this line

load-module module-combine channels=6 channel_map=front-left,front-center,front-right,rear-left,rear-right,subwoofer

4.pulseaudio --kill
5.pulseaudio --start

The problem is that front-left and rear-left are sound together and the same happens with front-right and rear-right.
This happens when I test the sound using speaker-test -c 6 and from KDE sound applet that has a test for surround sound.

What can I do to solve this problem?
Thank you.

In pavucontrol there are choices from stereo to like 7.1
Did you already tried it?

Pavucontrol does not show much to me.
I tried to create a new virtual sink in and
with this command
load-module module-remap-sink sink_name=rear_stereo master=<alsa_output.pci-0000_00_1b.0.analog-surround-71> channels=6 master_channel_map=front-left,front-right,side-left,side-right,front-center,lfe channel_map=front-left,front-right,rear-left,rear-right,front-center
,lfe remix=no

But Plasma does not seem to recognize this sink. The same happens with pavucontrol.

My speakers are 5.1 but I have found that if I put 7.1 the side-(left,right) plays for the rear-(left,right) as physical speakers. I tried to use the above so to remap side-(left,right) to rear-(left,right) virtual speakers but Plasma or pavucontrol does not see it.

What kind of connector your 5.1 sorround sound speakers use to connect to your rig.


inxi -A