Kernel bisection [1] is a good start to find which version introduced this regression.
[1] https://wiki.ubuntu.com/Kernel/KernelBisection -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1701171 Title: Laptop hangs on wake-up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1701171/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
