I have made an attempt to summarize the situation with a new description ** Description changed:
- I am running on a Dell 1420 laptop with an nvidia 8400 video card, using - the latest updates to the 64bit version of Intrepid Ibex. When I'm in X - (KDE or even just KDM) the cooling fan spins all the time. The air - coming from it isn't hot or anything it just blows all the time. If I - switch to a console (not log out, just press CTR+ALT+F1) the fan stops - spinning. When I switch back to X then the fan starts spinning again. - If I run X with the open source "nv" driver then the fan works as - expected (it's off unless the CPU is under load). Also, the previous - driver didn't do this, and that was version 177.60 (I believe). + This bug affects mainly Dell 1420 and Dell XPS M1330 laptops, but + potentially also other laptops with the Nvidia GeForce 8400 graphics + chipset. - The nvidia driver version is 177.80. + Upgrading from previous versions of the Nvidia driver to 177.80 causes + the fan to spin constantly or almost constantly. Reverting to 177.76 or + 173 stops the incessant fan activity. This is not a problem outside an X + session. - Lonnie Blansett + Upgrading to a newer BIOS (at least A12) seems to have stopped the fan activity for at least some users. Instructions for upgrading the Dell BIOS can be found here: + http://linux.dell.com/wiki/index.php/Tech/libsmbios_dellBiosUpdate + + There is suspicion that this might be related to faulty Nvidia cards overheating, as reported here: + http://www.theinquirer.net/gb/inquirer/news/2008/07/09/nvidia-g84-g86-bad -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
