My brightness controlls are not available after updating the Nvidia Drivers to newest version 452.06. With old Nvidia Driver versions (from Dell Download Page) it works. Any Idea?
same thing here, i have a RTX 2070 Max-Q and to get brightness control back i had to downgrade video card driver.
Another thing is to change brightness from bios, it work too but i don't like neither of this solutions
Hope Dell will release a fix about that
Finally asked on nvidia community and they say that we need to not update the video card driver from geforce experience but we need to follow the website of dell...
This is ridiculous but at least i have brightness control back