I have upgraded my system to ubuntu 15.04. And now there is no sound what so ever. My ubuntu is running on a ACER Aspire M5620 with a realtek sound card. I have tried several methods provided on the FAQ-forums, but nothing seems to help. Can anyone provid me with a new solution for this problem?
Ubuntu – No sound after upgrading to 15.04
sound
Best Answer
I solved the problem by doing the following (choose options depending on your hardware):