Does fglrx control the fan on card?
Does the driver control the fan on linux? Under windows games will cause the fan to spin up, but games under linux I get nothing. I mean I am only playing Urban Terror under linux which doesn't push too many polygons and the phoronix test suite won't work on Ubuntu so I can't try out Unigine...
Can't even use the aticonfig tool anymore to manually set it cause I guess ubuntu 9.10 xorg.conf is not what the tool expects. Card is a 4850.
You can use this to control the fan.
The BIOS/Firmware of the card controls the fan (just like in Windows.) If the card gets hotter, I can clearly hear the fan spinning up on my HD4870.