I have been facing this issue for a long time on my lenovo g50-30.For me it occurs while using google chrome(not sure of other browsers).I have upgraded my system to ubuntu 16.04.1 (4.4.0-36-generic);will update here if I encounter anything in the new release.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574047 Title: Lenovo G50-30 laptop freezes randomly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574047/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs