Fan control in nouveau driver with geforce 9600gt

Hi,

I have a geforce 9600gt (nv94) display adapter which has its fan running at 100% speed. Yesterday I've compiled and booted with the latest nouveau-2.6 tree. sensors from lm_sensors can correctly acquire GPU temperature and PWM speed but as far as I understood setting the speed is still not supported, am I right?

dmesg lists 3 performance levels with 100% fanspeed all of them.

Are there any other things that I can try? I saw a prlvl_wr module parameter which enables setting performance level but it is indicated that it is dangerous. Anyway, anything that I can try and help you?

Thanks.