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Persist integer GDK_SCALE when monitor scale is fractional

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GTK only honors whole-number GDK_SCALE values, so persisting 1.6 or 1.25
verbatim left GTK apps without a usable scale. Round to the nearest whole
factor when writing monitors.lua.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
David Heinemeier Hansson
2026-08-05 08:30:12 -05:00
co-authored by Claude Fable 5
parent caeffdc27b
commit b538dd545a
2 changed files with 21 additions and 2 deletions
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bin/omarchy-hyprland-monitor-scaling
+5 -2
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@@ -81,6 +81,9 @@ set_scale() {
local height="$(echo "$monitor_info" | jq -r '.height')"
local refresh_rate="$(echo "$monitor_info" | jq -r '.refreshRate')"
local new_scale="$(clean_scale "$requested_scale" "$width" "$height")"
# GTK only honors integer GDK_SCALE values, so persist the nearest whole
# factor even when the monitor scale itself is fractional.
local new_gdk_scale="$(awk -v scale="$new_scale" 'BEGIN { printf "%d", int(scale + 0.5) }')"
local monitor_lua="$HOME/.config/hypr/monitors.lua"
hyprctl eval "hl.monitor({ output = \"$active_monitor\", mode = \"${width}x${height}@${refresh_rate}\", position = \"auto\", scale = $new_scale })" >/dev/null
@@ -91,12 +94,12 @@ set_scale() {
if [[ -f $monitor_lua ]] && grep -q '^local omarchy_monitor_scale = ' "$monitor_lua"; then
sed -i -E \
-e "s|^local omarchy_monitor_scale = .*|local omarchy_monitor_scale = ${new_scale}|" \
-e "s|^local omarchy_gdk_scale = .*|local omarchy_gdk_scale = ${new_scale}|" \
-e "s|^local omarchy_gdk_scale = .*|local omarchy_gdk_scale = ${new_gdk_scale}|" \
"$monitor_lua"
elif [[ -f $monitor_lua ]] && grep -Eq '^hl\.monitor\(\{ output = "", mode = "preferred", position = "auto", scale = ("auto"|[0-9.]+) \}\)' "$monitor_lua"; then
sed -i -E \
-e "s|^(hl\.monitor\(\{ output = \"\", mode = \"preferred\", position = \"auto\", scale = )([^ ]+)( \}\))|\\1${new_scale}\\3|" \
-e 's|^hl\.env\("GDK_SCALE", ".*"\)|hl.env("GDK_SCALE", "'"$new_scale"'")|' \
-e 's|^hl\.env\("GDK_SCALE", ".*"\)|hl.env("GDK_SCALE", "'"$new_gdk_scale"'")|' \
"$monitor_lua"
fi
}