I switched from windows 10 to linux (debian) a few days ago. I installed discord, but when I try to use it the mic is not working. Im using a laptop, and discord only detects the internal microphone. The headset works in any other computer, but when I use it in this laptop the mic isn't working, but the audio is working.

This is my first time posting something here and I don't know what information I should provide, or what commands output i should post.

Thanks.

Welcome to LQ!

Can you please post the output of:

This are the outputs of the those commands:

alsamixer
┌──────────────────────────────────────────────────────── AlsaMixer v1.1.8 ─────────────────────────────────────────────────────────┐
│ Card: HDA Intel PCH F1: Help │
│ Chip: Realtek ALC255 F2: System information │
│ View: F3: Playback F4: Capture F5:[All] F6: Select sound card │
│ Item: Master [dB gain: -16.50] Esc: Exit │
│ │
│ │
│ ┌──┐ ┌──┐ ┌──┐ ┌──┐ ┌──┐ ┌──┐ ┌──┐ │
│ │ │ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │ │ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │ │ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │ │ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │ │ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │ │ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │ │ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │▒▒│ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │▒▒│ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │▒▒│ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │▒▒│ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │▒▒│ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ │▒▒│ │▒▒│ │ │ │▒▒│ │ │ │ │ │ │ │
│ ├──┤ ├──┤ ├──┤ └──┘ └──┘ └──┘ ┌──┐ ┌──┐ ┌──┐ ┌──┐ └──┘ Enabled Disabled │
│ │OO│ │OO│ │MM│ │MM│ │OO│ │OO│ │OO│ │
│ └──┘ └──┘ └──┘ └──┘ └──┘ └──┘ └──┘ L R │
│ CAPTURE │
│ 49 100<>100 0<>0 100<>100 0<>0 0<>0 0<>0 │
│< Master >Headphone Speaker PCM Mic Boost Mic Boost S/PDIF S/PDIF 1 S/PDIF 2 S/PDIF 3 Capture Auto-Mute Loopback │
│ │
│ │
└─────────────────────────────────────────────────────────────────────────────────────────────────── ────────────────────────────────┘

alsactl init
Found hardware: "HDA-Intel" "Realtek ALC255" "HDA:10ec0255,10431140,00100002 HDA:80862809,80860101,00100000" "0x1043" "0x1140"
Hardware is initialized using a generic method

record -l
-bash: record: command not found

Debian uses Pulse Audio. Install pavucontrol (the Pulse Audio Mixer--it's in the repos), if it's not already present. It give much more granular control over audio streams and devices than typical "volume control" interfaces. Check whether the external microphone is detected and can be manipulated by pavucontrol and let us know what you find.

The microphone is not detected, the only mic showing there is the internal one.