Today i've flashed a nighly port of CM9 (http://forum.xda-developers.com/show....php?t=2722721), running naa-ics-04. Everything was fine to the moment I wanted to listen to some music. After conecting my headphones, the first thinh i saw that the small icon doesnt appear at the notification bar as it happened to on other phones. the second thing was that when I played a song through Play Music, it was played throug speaker, not the connected headphones.
I had this problem on other rom also, and it was fixed by flashing a file that i just dont remember. Don't tell me that i shoul use Soundabout or any simillar apps, cause' its not a real sollution.
Thanks in advance, spindrion.