A kernel upgrade was fixed my problem. I updated my Xenial kernel (4.4.0-34.53) to the latest Yakkety kernel (4.6.3-040603.201606241434)
Installed .debs, what solves my problem: * http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6.3-yakkety/linux-headers-4.6.3-040603_4.6.3-040603.201606241434_all.deb * http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6.3-yakkety/linux-headers-4.6.3-040603-generic_4.6.3-040603.201606241434_amd64.deb * http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6.3-yakkety/linux-image-4.6.3-040603-generic_4.6.3-040603.201606241434_amd64.deb * http://archive.ubuntu.com/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.160_all.deb -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574125 Title: [Lenovo G50-70] suspend not working after upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs