I confirm, the cable has 2 ends, labeled HD AUDIO and AC'97, I tried
both and without, same problem.

I tried removing the SPEAKER cable, it's a little cable for the beep
sound of the motherboard, the end of this one is a little cylinder
producing the beep, same problem.

In Windows, the driver I'm using, which are working are :
Sound, video and game controllers
 - High Definition Audio Device
 - Realtek High Definition Audio

But in Linux it seems it's using HDA Intel, maybe it's the wrong driver?
I can also add that in alsamixer, if I try to put at 0 : Surround,
Center, LFE and Side, as soon as the annoying noise comes in, it reset
everything to 100.

Here's more information :

dmesg | grep -i sound
[    4.669488] input: HDA Intel PCH HDMI/DP,pcm=7 as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input6
[    4.669535] input: HDA Intel PCH HDMI/DP,pcm=3 as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input7
[    4.669574] input: HDA Intel PCH Line as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input8
[    4.669632] input: HDA Intel PCH Front Mic as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input9
[    4.669677] input: HDA Intel PCH Rear Mic as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[    4.669713] input: HDA Intel PCH Front Headphone as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[    4.669742] input: HDA Intel PCH Line Out Side as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[    4.669787] input: HDA Intel PCH Line Out CLFE as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input13
[    4.669817] input: HDA Intel PCH Line Out Surround as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input14
[    4.669845] input: HDA Intel PCH Line Out Front as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input15


lsmod | grep -i snd
snd_hda_codec_hdmi     32007  1 
snd_hda_codec_realtek    77876  1 
snd_hda_intel          33491  3 
snd_hda_codec         134212  3 
snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep              13602  1 snd_hda_codec
snd_pcm                96580  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi           13324  0 
snd_rawmidi            30512  1 snd_seq_midi
snd_seq_midi_event     14899  1 snd_seq_midi
snd_seq                61521  2 snd_seq_midi,snd_seq_midi_event
snd_timer              29425  2 snd_pcm,snd_seq
snd_seq_device         14497  3 snd_seq_midi,snd_rawmidi,snd_seq
snd                    78734  16 
snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore              15047  1 snd
snd_page_alloc         18484  2 snd_hda_intel,snd_pcm

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https://bugs.launchpad.net/bugs/1067434

Title:
  Sound output device keeps changing when using headphones

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