Thanks a lot for this insights, Doug! I really think it is related to battery mode, but I cannot say that it has to be on battery before suspend and/or during resume really. It's just that I've noticed this issue to pop up when suspending on battery. It might be even be only / more related to suspending to RAM vs. to disk.
** Changed in: linux (Ubuntu) Status: Confirmed => Triaged ** Summary changed: - Slow performance after resuming from/on battery (CPUs do not scale above 800MHz) + Slow performance after resuming from/on battery (CPUs do not scale above 800MHz) with intel_pstate -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1497520 Title: Slow performance after resuming from/on battery (CPUs do not scale above 800MHz) with intel_pstate To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1497520/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs