X.org config

00-keyboard.conf

# /etc/X11/xorg.conf.d/00-keyboard.conf

Section "InputClass"
	Identifier "system-keyboard"
	MatchIsKeyboard "on"
	Option "XkbLayout" "de"
	Option "XkbVariant" "nodeadkeys"
EndSection

10-monitor.conf

# /etc/X11/xorg.conf.d/10-monitor.conf

Section "Monitor"
  # ASUS VP28U
	Identifier "DisplayPort-0"
	Modeline "3840x2160R"  533.00  3840 3888 3920 4000  2160 2163 2168 2222 +hsync -vsync
	Option "Position" "0 0"
	Option "PreferredMode" "3840x2160R"
	Option "TargetRefresh" "60"
EndSection

Section "Monitor"
  # ASUS VG248
	Identifier "DisplayPort-1"
	Modeline "1920x1080_165.00"  525.00  1920 2088 2296 2672  1080 1083 1088 1192 -hsync +vsync
	Option "Position" "3840 0"
	Option "PreferredMode" "1920x1080_165.00"
EndSection

20-amdgpu.conf

# /etc/X11/xorg.conf.d/20-amdgpu.conf

Section "Device"
  Identifier "AMD"
  Driver "amdgpu"
  Option "TearFree" "on"
 EndSection
 

90-hardware-accelaration.conf

# /etc/X11/xorg.conf.d/90-hardware-accelaration.conf

Section "Extensions"
	Option "GLX" "Enable"
EndSection

90-xrandr.sh

# /etc/X11/xinit/xinitrc.d/90-xrandr.sh

#!/bin/sh
xrandr --output DisplayPort-1 --scale 2x2
setxkbmap -option compose:sclk