Seems that changing kernel worked. Now running with kernel version 3.19.0-031900.
uname -a gives Linux pok-Lenovo-Y70-70-Touch 3.19.0-031900-generic #201504091832 SMP Thu Apr 9 17:35:46 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1507689 Title: Shaky screen on Lenovo Y70 Touch To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1507689/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs