In former drivers there was an option in the nvidia-settings GUI for that. I also tried it manually:
Which gives me:
ERROR: The attribute 'GPUScaling' specified in assignment 'GPUScaling=131074' cannot be assigned (it is a read-only attribute).
I also do not know if
131074 is a correct value. Other values give the same error.
Do I have to revert to an older driver or is there a hack that can prevent my GT8800 from doing GPU scaling.