brightness control does not not on a t500

I have a T500 with an ATI 3650 card.

When power management is set to high performance (using the discrete card), the brightness can be changed with the fn key (I do not see the cursor changing from 0 to 15, but the brightness remains the same).

When I go to (using the built-in map) energy saving, the brightness CAN be adjusted.

I downloaded the latest driver (video and hotkey)

What could be wrong?

because the update of the bios and it seems to work now.

Tags: ThinkPad Notebooks

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