adaptive sync

sway/scripts/lock-now

@@ -1,8 +1,8 @@
 #!/bin/bash
 wall_dir="${1:?wallpaper directory required}"
 img=$(find "$wall_dir" -type f \( -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.png" \) | shuf -n1)
-if [ -n "$img" ]; then
-    exec swaylock -f -i "$img"
-else
-    exec swaylock -f
-fi
+swaymsg -q output DP-1 adaptive_sync off            # lock screen redraws rarely: fixed 240 Hz
+swaylock -f ${img:+-i "$img"}
+# once unlocked, let vrr-follow decide again (in background so swayidle/suspend aren't held up)
+( while pgrep -x swaylock >/dev/null; do sleep 1; done
+  ~/.config/sway/scripts/vrr-follow once ) &

sway/scripts/vrr-follow

@@ -0,0 +1,14 @@
+#!/bin/sh
+# adaptive_sync on DP-1 only while the visible workspace shows a fullscreen window
+OUT=DP-1
+update() {
+  if [ "$(swaymsg -t get_tree | jq --arg o "$OUT" '
+      .nodes[] | select(.name==$o) as $out | $out.nodes[]
+      | select(.name==$out.current_workspace)
+      | [.. | objects | select((.fullscreen_mode? // 0) > 0)] | length')" -gt 0 ]
+  then s=on; else s=off; fi
+  [ "$s" != "$last" ] && swaymsg -q output "$OUT" adaptive_sync "$s" && last=$s
+}
+[ "$1" = once ] && { update; exit; }
+update
+swaymsg -t subscribe -m '["workspace","window"]' | while read -r _; do update; done