Chris, As I have informed earlier. I had already removed Mint and installed the vivid version from the link you provided.
The current kernel is : 3.19.0-18-generic Distributor ID: Ubuntu Description: Ubuntu 15.04 Release: 15.04 Codename: vivid Then I updated the BIOS as suggested. After that I tried to install the latest upstream kernels by downloading them from the link provided and using the below command: sudo dpkg -i *.deb Sorry, I'm not able to get you. I'm a newbie to Linux. Please advice me which version of the kernel should I install ? ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1456656 Title: Lenovo G50-45 Wireless card Qualcomm Atheros Device not Working. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1456656/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs