Having just upgraded to Ubuntu 8.10, I hit this spinning fan problem on a Dell Latitude D630 laptop. The problem appears to have been introduced by the upgrade of the Nvidia driver from version 173 to 177. Graphics is provided by an nVidia Quadro NVS 135M.
Searching for answers I found http://direct2dell.com/one2one/archive/2008/08/18/nvidia-gpu-update- dell-to-offer-warranty-enhancement-to-all-affected-customers- worldwide.aspx - which implicates nVidia. My BIOS was version A02, so upgraded to the latest (A13). I noticed in the release notes for the previous version (A12) at http://support.dell.com/support/downloads/download.aspx?c=us&l=en&s=gen&releaseid=R190175&SystemID=LATITUDE D630&servicetag=&os=WW1&osl=en&deviceid=13457&devlib=0&typecnt=0&vercnt=12&catid=1&impid=-1&formatcnt=1&libid=1&fileid=261129 (!) that there's this comment: Fixes/Enhancements ------------------ 1. Updated Intel Video BIOS. 2. Updated Nvidia Video BIOS. 3. Enhancement for thermal control. The BIOS seems to have fixed the problem! I've been watching the system with i8kmon and it seems to be behaving reasonably (with the fan off most of the time). Hope this information is useful. gdm -- 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