I have had my N900 for a week it was a present but has now developed an intermittent fault. When attaching headphones Shure or my Sony ones even the nokia's default ones don't (show headset icon) I have tried all the headsets on my E75 and they all work fine.

I have done some system hunting and checked the output of dmesg and it is being detected see below. Every time I connect and disconnect I see the below. Even though the system shows connected sound comes out the speaker and not the headphones.

[4821.719726] headphone (GPIO 177) is now connected
[4823.336883] headphone (GPIO 177) is now disconnected

can anyone help with this issue?