Recently I have installed ubuntu 11.04 on iMac of mine. whenever I connect headset with laptop does not mute internal speakers. Radeon open source divers as well as ATI drivers is working fine. Wi-Fi and Webcam is working fine. I have installed OCZ Vertex 3 drive and it is giving speed of ~460 MB/s.
Can you tell me what went wrong in the situation of mine? Thanks a lot in advance,