From 7251c8c2f45023333169e76085bf770aa3f17c79 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joel=20K=C3=B6per?= <jk@joelkoeper.de>
Date: Thu, 6 Nov 2025 20:24:38 +0100
Subject: [PATCH] fix(displays): disable display when disabling mirroring on a
 projected display

---
 cosmic-settings/src/pages/display/mod.rs | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/cosmic-settings/src/pages/display/mod.rs b/cosmic-settings/src/pages/display/mod.rs
index c54f01d..9101251 100644
--- a/cosmic-settings/src/pages/display/mod.rs
+++ b/cosmic-settings/src/pages/display/mod.rs
@@ -16,6 +16,7 @@ use cosmic_randr_shell::{
     AdaptiveSyncAvailability, AdaptiveSyncState, List, Output, OutputKey, Transform,
 };
 use cosmic_settings_page::{self as page, Section, section};
+use indexmap::Equivalent;
 use slab::Slab;
 use slotmap::{Key, SecondaryMap, SlotMap};
 use std::sync::atomic::{AtomicBool, Ordering};
@@ -548,7 +549,25 @@ impl Page {
             Message::DisplayToggle(enable) => return self.toggle_display(enable),
 
             Message::Mirroring(mirroring) => match mirroring {
-                Mirroring::Disable => return self.toggle_display(true),
+                Mirroring::Disable => {
+                    for k in self.mirror_map.keys() {
+                        if k.equivalent(&self.active_display) {
+                            return self.toggle_display(true);
+                        }
+
+                        if let Some(v) = self.mirror_map.get(k) {
+                            if v.equivalent(&self.active_display) {
+                                if let Some(output) = self.list.outputs.get(k) {
+                                    return self.exec_randr(output, Randr::Toggle(true));
+                                } else {
+                                    return Task::none();
+                                }
+                            }
+                        }
+                    }
+
+                    return Task::none();
+                }
 
                 Mirroring::Mirror(from_display) => {
                     let Some(output) = self.list.outputs.get(self.active_display) else {