Solved: Plz install the following package by changing the appropriate version of ubuntu in the following line.
sudo apt-get install linux-backports-modules-alsa-lucid-generic You may need to update /etc/modprobe.d/alsa-base.conf with options snd-hda-intel model=ideapad More details can be found in the below link http://www.paralaptop.com/ubuntu/fix-ubuntu-10-04-lucid-lynx-headphone- jack-sense-problem.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. https://bugs.launchpad.net/bugs/374915 Title: Headphones do not work, built-in speakers do -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs