On your system, this is in kernel message: [ 0.104005] ACPI: GPE 0x6F active on init
I just tested Precision 3630 Tower in our lab, no such message, and I don't see the issue here. /sys/firmware/acpi/interrupts/gpe6F stays at 0 all the time. Can you try "restore default settings" in BIOS? ** Also affects: dell-sputnik Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1799235 Title: kworker process starts at 85% of cpu and stays there To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1799235/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs