Since "dell-smm-hwmon" seems to be an alias of the i8k module, and based on the solution from the #100121 of the kernel bug tracker, blacklist "dell-smm-hwmon" resolved the issue at least on my Dell Studio XPS 8000. I tried many hard reboots to confirm this.
However i don't really know this module and can't say if blacklisting it is free of side effects. i'd argue that this module concerns DELL laptops as it's modinfo description suggests but my DELL studio XpS 8000 is a desktop, not a laptop. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1514052 Title: erratic fan speed and little control kernel 4.2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1514052/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs