Hello, I have been with this problem in linux for a long time, the laptop has 2 connectors for jack, the one for the articular / digital outputs works well (the digital output is broken) but the microphone / line input do not know how to change the mode.
In principle it is in line-in mode (it records well from a line source and in stereo), but I can't get it to change to mono recording and make the microphone work well.
In Windows, the Realtek program has to change modes and it works well, I can also activate the hardware feedback by listening to the microphone completely in real time (when I restart and switch to Linux, the microphone mode is lost and also feedback hardware)
I have tried Jack retasking for HDA Intel sound cards and was surprised that the microphone input / line input can be converted to a line output and I have found that it works, but impossible to do its normal microphone functionality
I have also tried adding in /etc/modprobe.d/alsa-base.conf
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options snd-hda-intel model = fujitsu-pi2515
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System: Host: jeronimo17-AMILO-Pi-1505 Kernel: 4.15.0-99-generic x86_64 bits: 64 Desktop: Xfce 4.14.1 Distro: Linux Mint 19.3 Tricia Machine: Type: Laptop System: FUJITSU SIEMENS product: AMILO Pi 1505 v: N/A serial: <root required> Mobo: FUJITSU SIEMENS model: AMILO Pi 1505 serial: <root required> BIOS: FUJITSU SIEMENS v: 1.14C date: 07/30/2007 jeronimo17@jeronimo17-AMILO-Pi-1505 ~ $ cat /proc/asound/card0/codec* | grep Codec Codec: Motorola Si3054 Codec: Realtek ALC883 jeronimo17@jeronimo17-AMILO-Pi-1505 ~ $ cat /proc/asound/card0/pcm0c/info card: 0 device: 0 subdevice: 0 stream: CAPTURE id: ALC883 Analog name: ALC883 Analog subname: subdevice #0 class: 0 subclass: 0 subdevices_count: 1 subdevices_avail: 1 jeronimo17@jeronimo17-AMILO-Pi-1505 ~ $ sudo inxi -A Audio: Device-1: Intel NM10/ICH7 Family High Definition Audio driver: snd_hda_intel Sound Server: ALSA v: k4.15.0-99-generic
So my questions are:
How to change the microphone input / line input mode on the jack?
How to trigger input feedback through speakers without creating a software loop?
Should the Realtek ALC883 codec be 1st instead of Motorola Si3054?
Thank you all