Comment 12 for bug 1412057

Same here. Just upgraded from 14.04 to 15.04, and now fan is not turning off. Open NVidia xserver setings, GPU is set to Intel, but fan still running. That wasnt happening back with 14.04 and bumbleebee/optimus prime, sorry, can't remember which set-up i've used.

Would love to see a workaround solution, it's a shame this problem still persists after several years - can't really use ubuntu like that.