MacBook Pro 2011 having problems with sleeping and screen brightness after removing GPU drivers (it had failed)? My MacBook Pro 2011 GPU has failed earlier last week, I had to remove the GPU drivers to get it to work again.

After doing so, 
it either doesn't sleep at all (when closing the lid), 
or it goes to sleep when you choose Sleep from the Apple menu but never wakes up. 

It also has an issue with overheating and screen brightness. 

I'm wondering if there is any solutions to any of these problems.
The first thing I would try is resetting the System Management Controller (SMS).

How to reset the SMC on your model of MacBook Pro


Shut down your MBP
Unplug the power cable from your MBP
For 10 seconds, press and hold at the same time the shiftcontroloption keys (on the left side of the built-in keyboard) and the power button
After 10 seconds let go of all keys and the power button 
Plug in the power cable
Switch your MBP back on