hi to all, i am using ubuntu10.10 in my laptop(type lenovo ideapad z460).Internal microphone* and internal speaker working but external speaker and headset not working. while playing sound we insert headset in laptop internal speaker going to off but not responding for me... In sound preferences not deduct the external microphone.* what i do.. -- நன்றி ... சண்முகசுந்தரம்.க Kanchi Linux User Group Rocks ! http://kanchilug.wordpress.com My Experiments In Linux are here http://gowithfoss.wordpress.com/