So the boot option "acpi=rsdt" suggested in https://bugzilla.kernel.org/show_bug.cgi?id=8246#c67 fixes it for me:
[ 99.951681] PM: resume of drv:battery dev:PNP0C0A:00 complete after 130.916 msecs ** Bug watch added: Linux Kernel Bug Tracker #8246 http://bugzilla.kernel.org/show_bug.cgi?id=8246 -- PM: resume of drv:battery dev:PNP0C0A:00 complete after 59348.072 msecs https://bugs.launchpad.net/bugs/575180 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
