From 5debc57d31f7990cb20b3acc6b4a313515496b4c Mon Sep 17 00:00:00 2001
From: Jeroen Schweitzer <jpmschweitzer@gmail.com>
Date: Thu, 23 Apr 2026 09:43:11 +0200
Subject: [PATCH] restore GDK_BACKEND=x11 for KDE Wayland frameless

The KDE server-decoration protocol negotiation compiles and runs
but KWin still applies SSD. XWayland remains the only reliable
path on KDE Wayland + GTK3. The native protocol code stays in
place for when KWin or GTK behavior changes. Q-031 tracks this.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index d07ca09f..be237cd9 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ help: ## Show this help.
 
 .PHONY: run
 run: ## Launch the Flutter desktop app.
-	LD_LIBRARY_PATH=$(CURDIR)/native/linux-x64$${LD_LIBRARY_PATH:+:$$LD_LIBRARY_PATH} flutter run -d linux
+	GDK_BACKEND=x11 LD_LIBRARY_PATH=$(CURDIR)/native/linux-x64$${LD_LIBRARY_PATH:+:$$LD_LIBRARY_PATH} flutter run -d linux
 
 .PHONY: pubget
 pubget: ## flutter pub get.