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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1067434 Title: Sound output device keeps changing when using headphones To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1067434/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
