I can confirm Giles' solution. I have a Latitude D630 and just upgraded to Kubuntu 8.10. When using the Nvidia driver 177, the fan was continuously starting and stopping. My BIOS version was A08 but after upgrading to A13, the problem was fixed.
-- nvidia graphics driver 177.80 on geforce 8400 makes fan spin all the time https://bugs.launchpad.net/bugs/280805 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