It is happening with me too, no /proc/acpi/fan
# dmesg | grep -i fan [ 0.785673] ACPI: Fan [C257] (off) [ 0.785793] ACPI: Fan [C258] (off) [ 0.785913] ACPI: Fan [C259] (off) [ 0.786036] ACPI: Fan [C25A] (off) # ls /proc/acpi/ ac_adapter battery button event wakeup My notebook is a HP nx6115 Linux bt 2.6.39.4 #1 SMP Thu Aug 18 13:38:02 NZST 2011 i686 GNU/Linux Ubuntu Lucid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/763477 Title: lenovo y560 overheat. no /proc/acpi/fan To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/763477/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs