How do I disable Vari-Bright (atibtmon.exe) without Catalyst Control Center?
I added a value to the registry to this key:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000
The value name is PP_VariBrightFeatureEnable with the value type of DWORD and value 0x00000000.
Even though the value hadn't existed before, the brightness was constant after computer restart.
Hope this helps.