I can confirm this on Lenovo N100, and judging by the forums, this is a known Ubuntu issue.
-- Notebook CPU fan stays off after resuming from hibernate https://bugs.launchpad.net/bugs/138065 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs