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i3/config

@@ -95,6 +95,9 @@ floating_modifier $mod
 # or left-clicking anywhere into the window while holding the floating modifier.
 #tiling_drag modifier titlebar
 #xrandr --output HDMI-2 --auto --right-of eDP1
+# High refresh rates can flicker on AMD (VRAM clock switching), so run the
+# desktop at 120Hz. See README "High refresh rate flicker".
+exec --no-startup-id xrandr --output DisplayPort-0 --mode 1920x1080 --rate 120
 
 # start a terminal
 #bindsym $mod+Return exec i3-sensible-terminal