I am also looking for a way to disable jack sensing . searched google over and over but no luck. I have an msi a75ma-g55 motherboard with the following sound specs :
Chipset integrated by Realtek® ALC887
- Flexible 8-channel audio with jack sensing
- Compliant with Azalia 1.0 Spec
I have connected my speakers to the back and my headphones to the front panel . Both of these sound devices can be turned off ( power button for speakers and volume knob on head phones ) with out unplugging them from the system . but ubuntu only sends sound to the headphones . To use the speakers i have to unplug them. In windows we had realtek hd audio manager but in linux there is zero support from realtek . Will never buy a computer with realtek hardware in it again . wasted 3 hours looking for a fix . Can someone please create a switch to disable front panel jack detection in ubuntu ?
or maybe a terminal guide ? any thing ? Show us this forum is alive !