Can anyone confirm what the latest catalyst version is that has working fan speed control (aticonfig --pplib-cmd "set fanspeed x y") ?

I'm currently using 11-12-1 but it has a broken xv implementation. Am using x11 output as a workaround (opengl works too).

I tried 12-6 but it does not have fan speed control. My googling efforts revealed 12-8 doesn't have it neither. Does 12-9 or later have it?

Am I stuck between a choice of broken xv with fan control vs. possibly fixed xv with no fan control? Does ATI really suck this much?
Thanks for your help.