From 77fff8934b5a92dcf30a016aa1daa9c927776128 Mon Sep 17 00:00:00 2001
From: DreamMaoMao <2523610504@qq.com>
Date: Fri, 10 Jul 2026 08:04:56 +0800
Subject: [PATCH] fix: dont set display env before x11 backend create

---
 src/config/parse_config.h | 16 ++++++++++++++--
 src/mango.c               |  4 +++-
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/src/config/parse_config.h b/src/config/parse_config.h
index 236953fc..54da5cc1 100644
--- a/src/config/parse_config.h
+++ b/src/config/parse_config.h
@@ -1326,12 +1326,23 @@ FuncType parse_func_name(char *func_name, Arg *arg, char *arg_value,
 	return func;
 }
 
-void set_env() {
+void set_env_without_display() {
 	for (int32_t i = 0; i < config.env_count; i++) {
+		if (strcmp(config.env[i]->type, "DISPLAY") == 0) {
+			continue; // Skip setting DISPLAY
+		}
 		setenv(config.env[i]->type, config.env[i]->value, 1);
 	}
 }
 
+void set_env_display() {
+	for (int32_t i = 0; i < config.env_count; i++) {
+		if (strcmp(config.env[i]->type, "DISPLAY") == 0) {
+			setenv("DISPLAY", config.env[i]->value, 1);
+		}
+	}
+}
+
 void run_exec() {
 	Arg arg;
 
@@ -4334,7 +4345,8 @@ void reset_option(void) {
 	handlecursoractivity();
 	reset_keyboard_layout();
 	reset_blur_params();
-	set_env();
+	set_env_without_display();
+	set_env_display();
 	run_exec();
 
 	reapply_cursor_style();
diff --git a/src/mango.c b/src/mango.c
index 602dbf07..5340d4c9 100644
--- a/src/mango.c
+++ b/src/mango.c
@@ -5560,6 +5560,8 @@ run(char *startup_cmd) {
 		die("startup: display_add_socket_auto");
 	setenv("WAYLAND_DISPLAY", socket, 1);
 
+	set_env_display();
+
 	/* Start the backend. This will enumerate outputs and inputs, become the
 	 * DRM master, etc */
 	if (!wlr_backend_start(backend))
@@ -6150,7 +6152,7 @@ void setup(void) {
 	}
 	init_baked_points();
 
-	set_env();
+	set_env_without_display();
 
 	int32_t drm_fd, i;
 	int32_t sig[] = {SIGCHLD, SIGINT,