nexoniarz-config-nixos/modules/scripts/display-set.sh
Nexoniarz d1ff0a11e0 Add Qt/GTK2 theming, default apps, LibreOffice; fix display.conf race
- Add qt-theme-set: a working Qt theming pipeline via qt6ct (the
  QT_QPA_PLATFORMTHEME=qt6ct env var was pointing at a platform theme
  plugin that wasn't even installed, so every Qt app fell back to its
  own default style). Also regenerates kdeglobals' KColorScheme groups
  and sets QT_QUICK_CONTROLS_STYLE=org.kde.desktop for Kirigami-based
  KDE apps, whose QML-drawn chrome ignores QPalette/qt6ct entirely.
  Gwenview's dialogs/content now follow the theme; its toolbar/statusbar
  chrome is a known remaining gap tied to Kirigami's platform-theme
  detection outside a full Plasma session
- Add GTK2 compat (~/.gtkrc-2.0: icon theme + font follow the theme;
  no dark variant exists for GTK2's Adwaita engine)
- Add modules/default-apps.nix: Gwenview/Ark as system-default image
  viewer/archive manager via /etc/xdg/mimeapps.list, LibreOffice
  (Qt6 build), and a working Thunar "Open Terminal Here" (it shipped
  calling exo-open, which isn't installed and never resolved)
- Fix display-set.sh: mktemp defaulted to /tmp, a different filesystem
  than ~/.config/hypr here, making the mv into display.conf a
  non-atomic copy+unlink. Hyprland's file watcher could catch it
  mid-replace and throw "source= globbing error: found no match" on
  any monitor mode/orientation change. Stress-tested with 60 concurrent
  write+reload cycles after the fix with zero errors
2026-08-30 16:51:39 +02:00

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Shell

#!/usr/bin/env bash
# Applies a monitor mode/position/scale/transform immediately (hyprctl)
# AND persists it into ~/.config/hypr/display.conf, which hyprland.conf
# sources — without that file, hyprland.conf's generic fallback rule
# ("monitor = , preferred, auto, 1") is the only thing on record, and
# ANYTHING that makes Hyprland re-evaluate monitor state (observed: even
# changing the cursor theme via `hyprctl setcursor` does this) reapplies
# that fallback, silently dropping back to "preferred" refresh rate
# instead of whatever the user actually picked.
set -euo pipefail
mon="${1:?usage: display-set <monitor> <mode> <x> <y> <scale> [transform]}"
mode="${2:?mode required}"
x="${3:?x required}"
y="${4:?y required}"
scale="${5:?scale required}"
transform="${6:-0}"
descriptor="$mon,$mode,${x}x${y},$scale"
[ "$transform" != "0" ] && descriptor="$descriptor,transform,$transform"
conf="$HOME/.config/hypr/display.conf"
mkdir -p "$(dirname "$conf")"
touch "$conf"
line="monitor = $descriptor"
if grep -q "^monitor = $mon," "$conf" 2>/dev/null; then
# mktemp in the same directory as $conf, not the default /tmp: /tmp is
# a different filesystem here, which makes `mv` below a non-atomic
# copy+unlink instead of a rename — Hyprland's file watcher (it
# watches every `source=`d file, including this one) could catch the
# destination mid-replace and its `source=` glob would find nothing,
# throwing "globbing error: found no match" (observed live after an
# orientation change, which always hits this branch since DP-1
# already has an existing line by then).
tmp=$(mktemp "$conf.XXXXXX")
awk -v prefix="monitor = $mon," -v newline="$line" '
index($0, prefix) == 1 { print newline; next } { print }
' "$conf" > "$tmp"
mv "$tmp" "$conf"
else
echo "$line" >> "$conf"
fi
hyprctl keyword monitor "$descriptor" > /dev/null