hello,
I was using my Jolla 1 device till recently, the jack died.

So I bought Xperia XA2, to be able to listen to music.
As I did with Jolla - with headphones, and also by connecting via a longer wire to the AUX of my car's audio system.

Now, XA2 under android did recognize the wire to the AUX of the car.
Since I installed Sailfish on it, it only recognizes the connected headphones. The wire to the audio system is longer, and the device does not 'feel' the connected wire.

I also tried at home, I have a 2 meter wire which I connect to the home audio system, and XA2 with Sailfish does not feel the connection.

So I wonder if that's a kernel/sound driver issue, and if that driver could be tuned by writing something to /proc or /sys files.

Thank you!