FWIW the brightness keys (Fn-F5 & Fn-F6) work fine on my Vaio VGN-CR120E using the 32-bit version of 10.10 release booted from a LiveCD.
FWIW the brightness keys (Fn-F5 & Fn-F6) work fine on my Vaio VGN-CR120E using the 32-bit version of 10.10 release booted from a LiveCD.