Well we don't have a RK27xx datasheet so I had a look at the Rk26xx datasheet.
I think I have found what would cause my problem. It's on page 84 btw.
CR1: Control Register 1
Bit 7: JACK: Output Jack plug detection status
0= no jack 1= output jack present
Bit 6: MONO: Stereo-to-mono conversion for DAC path
0= stereo 1= mono
Bit 5: DAC_MUTE: DAC soft mute mode
0= inactive 1= puts the DAC in soft mute mode (internal input MUTE)
Just need to find and fix it now
__________________
-----------------------------------------------------------------------------------------------------------
|