Troubleshooting: Headphone Does Not Record through Back of the HP Elite t660 in IGEL OS 12

You are running on IGEL OS 12 and insert the 3.5mm headphone jack on the back of the HP Elite t660 device. The microphone does not record.

Problem

The rear connection on the HP Elite t660 is line-out by default. The connection needs to be changed to line-in for recording.

Solution

→ To switch the rear side line-out to a line-in, enable the registry parameter Switch back jack to line-in under system.sound_driver.snd_hda_intel.hp_t660_back_microphone.

You need to reboot the device to activate the setting.