I tested this on a lot of kernels and distribution both iX86 or x64

My card is a Mobility Radeon HD 4500, RV710

Actually I think that the profile have to be set on low by default, to prevent
hardware damages.

But this is not enough, because with proprietary drivers the card run around
55°C on my system, but with the radeon and low profile is around 70°C, and with
the default the temperature (idle system) go around 82°C for most of the time.

This can easily harm a system.

Actually this bug assume a big importance because most of the affected chip
aren't supported anymore from proprietary drivers, so a user can unconsciously
run into troubles and hardware damage after a simply upgrade.