Random bright changes

[HotelBellaMuerte]

GPU: RX 560

Driver: amdgpu (18.0)

Kernel: 416 (updated)

extras

39 extra/xorg-server-common 1.19.6+13+gd0d1a694f-1 (xorg) [installed]
    Xorg server common files
47 extra/xorg-setxkbmap 1.3.1-1 (xorg-apps xorg) [installed]
    Set the keyboard using the X Keyboard Extension
49 extra/xorg-twm 1.0.10-1 [installed]
    Tab Window Manager for the X Window System
52 extra/xorg-xauth 1.0.10-1 (xorg-apps xorg) [installed]
    X.Org authorization settings program
62 extra/xorg-xdpyinfo 1.3.2-1 (xorg-apps xorg) [installed]
    Display information utility for X
76 extra/xorg-xkill 1.0.5-1 (xorg-apps xorg) [installed]
    Kill a client by its X resource
84 extra/xorg-xmessage 1.0.5-1 [installed]
    Display a message or query in a window
85 extra/xorg-xmodmap 1.0.9-1 (xorg-apps xorg) [installed]
    Utility for modifying keymaps and button mappings
87 extra/xorg-xprop 1.2.3-1 (xorg-apps xorg) [installed]
    Property displayer for X
88 extra/xorg-xrandr 1.5.0-1 (xorg-apps xorg) [installed]
    Primitive command line interface to RandR extension
89 extra/xorg-xrdb 1.1.1-1 (xorg-apps xorg) [installed]
    X server resource database utility
91 extra/xorg-xset 1.2.4-1 (xorg-apps xorg) [installed]
    User preference utility for X
92 extra/xorg-xsetroot 1.1.2-1 (xorg-apps xorg) [installed]
    Classic X utility to set your root window background to a given pattern or 
    color
98 extra/xorgproto 2018.4-1 [installed]
    combined X.Org X11 Protocol headers

Opencv 3.4.1-2

Vulkan icd 1.1.70.0-3

[HotelBellaMuerte]

PDs

• gpu its fine

• i got this after update today (14-15 UTC)

• i've rebooted and all works fine

• i can game pacefully (gta)