I still don't know whether my problem is best covered by this project, but I have found that adding acpi_osi="Linux" to the boot options in GRUB fixes it. The fan now cycles on and off to keep the temperature between 35 and 50°C.
-- fan runs continuously on Toshiba L305-S5933 https://bugs.launchpad.net/bugs/319075 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs