(In reply to Orlando Nigro from comment #91)
> it didn't work :(. I downloaded the firmware (the k one) changed the name
> and replaced the old one. I reboot and without change the DPM value it
> freezes after a while. 
> Now I'm back using the echo-command when I login and it's the only way to
> make the GPU work. Do I maybe have to do more after replacing the file? Run
> some command?

If you are using an initrd, you'll need to update the copy of the firmware in
your initrd.