Arch Linux

liden

Member

Registered: 2018-02-24

Posts: 1

How to disable adaptive contrast on radeon?

Hi,

the contrast/brightness changes when watching videos depending how dark/bright the content is. This becomes really annoying when a scene changes to a dark setting and I hardly see details. I think it might be a powersafe feature / AMD Vari-Bright feature but I don't know how to disable it in arch.

My system is running on 4.15.4-1-ARCH / Mate 1.20.0

04:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde XT [Radeon HD 7770/8760 / R7 250X] [1002:683d]
    Subsystem: ASUSTeK Computer Inc. Cape Verde XT [Radeon HD 7770/8760 / R7 250X] [1043:3009]
    Kernel driver in use: radeon
    Kernel modules: radeon, amdgpu

Thank you for help!