I experience absolutely the same problem after upgrading to Kubuntu 18.04. I am using Dell Latitude e5570 laptop and everything worked fine on 16.04. Please let me know what info is needed to investigate the problem.
# uname -a Linux latitude 4.15.0-20-generic #21-Ubuntu SMP Tue Apr 24 06:16:15 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux # sudo lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04 LTS Release: 18.04 Codename: bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1619815 Title: Resuming after suspend restarts laptop (when on battery) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1619815/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
