I just got Ubuntu 11.10 64bit setup on my system that's a got a ATI Crossfire setup (I already installed the proprietary ATI drivers and Catalyst with no issues) however I don't seem to be able to control the second video cards fan speed that seems to be running at max (I have lm-sensors & fancontrol setup).
# aticonfig --pplib-cmd 'set fanspeed 1 31' PPLIB command execution has failed! ati_pplib_cmd: execute "set" failed!
Works just fine on the first card:
# aticonfig --pplib-cmd 'set fanspeed 0 31' PPLIB command execution is Successful!
Both cards are being detected as you can see here:
CrossFire chain for adapter 0, status: enabled 0. 0f:00.0 ATI Radeon HD 5900 Series 1. 0e:00.0 ATI Radeon HD 5900 Series
Some help please.