I am using DELL studio laptop and I am using it from more than one year first I was using it with windows vista. After that I have installed UBUNTU operating system in my laptop. Before I installed the UBUNTU in my laptop all the things were working perfectly but after installing the UBUNTU whenever I insert the headphone in jack pin at that time I am not able to hear any sound please tell me what is wrong with my laptop? I want to solve this problem as soon as possible.
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