Happened to my Lenovo ThinkPad X220. Yesterday I was playing Factorio, with the laptop fan spinning full-throttle, and intel_powerclamp started idle injection, which, ok, fair enough. Factorio is very CPU hungry and this laptop model is like 6 years old.
What is a problem is that today I'm not playing Factorio, the CPU temperature is at 45 degrees, the fan is idle, and yet powerclamp is still doing the idle injection schtick. Loadavg over 5, kinject_idle at 50-60% on all four threads (this is a dualcore system with hyperthreading), everything is painfully laggy. Rebooting fixed everything (until next time, I suppose). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1389077 Title: [HP ProBook 4530s / Lenovo G580] Intel Powerclamp is Slowing CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1389077/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs