Problem with front headphone connector

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Dear ALSA users,


Linux 4.9.30 is used.

Using a Fujitsu Desktop ESPRIMO P756 E85 with a Realtek ALC671, depending on the file with stereo sound, I need to pull the headphone jack a little out to hear both channels. But for others, I need to push it back in.

```
[    2.227043] ALSA device list:
[    2.227205]   No soundcards found.
[ 2.235428] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC671: line_outs=1 (0x21/0x0/0x0/0x0/0x0) type:line [ 2.235574] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=1 (0x17/0x0/0x0/0x0/0x0) [ 2.235725] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x14/0x0/0x0/0x0/0x0)
[    2.235862] snd_hda_codec_realtek hdaudioC0D0:    mono: mono_out=0x0
[    2.235959] snd_hda_codec_realtek hdaudioC0D0:    inputs:
[    2.236053] snd_hda_codec_realtek hdaudioC0D0:      Front Mic=0x19
[    2.236150] snd_hda_codec_realtek hdaudioC0D0:      Rear Mic=0x18
[    2.236246] snd_hda_codec_realtek hdaudioC0D0:      Line=0x1a
[    2.245778] random: fast init done
[ 2.247897] snd_hda_codec_hdmi hdaudioC0D2: No i915 binding for Intel HDMI/DP codec [ 2.249253] input: HDA Intel PCH Front Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input4 [ 2.249690] input: HDA Intel PCH Rear Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input5 [ 2.249868] input: HDA Intel PCH Line as /devices/pci0000:00/0000:00:1f.3/sound/card0/input6 [ 2.250045] input: HDA Intel PCH Line Out as /devices/pci0000:00/0000:00:1f.3/sound/card0/input7 [ 2.250216] input: HDA Intel PCH Front Headphone as /devices/pci0000:00/0000:00:1f.3/sound/card0/input8 [ 2.250609] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input```

Do you know if that is a hardware defect, or can some workaround be added to the Linux kernel?


Kind regards,

Paul

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