From 9449b554ba84aacb5895eb8e88f6c50e3bf8f8d4 Mon Sep 17 00:00:00 2001
From: yzct12345 <yzct12345@users.noreply.github.com>
Date: Tue, 13 Dec 2022 19:34:36 -0500
Subject: [PATCH] Disable compositor on Qt Linux

---
 CMakeLists.txt          |  8 ++++++--
 src/yuzu/CMakeLists.txt |  3 +++
 src/yuzu/main.cpp       | 15 +++++++++++++++
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 47eddf99e9..43e69bc415 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -260,11 +260,15 @@ if(ENABLE_QT6 AND Qt6_LOCATION)
     list(APPEND CMAKE_PREFIX_PATH "${Qt6_LOCATION}")
 endif()
 
+if (UNIX AND NOT APPLE)
+    find_package(X11 REQUIRED)
+endif()
+
 function(set_yuzu_qt_components)
     # Best practice is to ask for all components at once, so they are from the same version
     set(YUZU_QT_COMPONENTS2 Core Widgets Concurrent)
-    if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
-        list(APPEND YUZU_QT_COMPONENTS2 DBus)
+    if (UNIX AND NOT APPLE)
+        list(APPEND YUZU_QT_COMPONENTS2 DBus X11Extras)
     endif()
     if (YUZU_USE_QT_MULTIMEDIA)
         list(APPEND YUZU_QT_COMPONENTS2 Multimedia)
diff --git a/src/yuzu/CMakeLists.txt b/src/yuzu/CMakeLists.txt
index 4a7d35617c..47980a832f 100644
--- a/src/yuzu/CMakeLists.txt
+++ b/src/yuzu/CMakeLists.txt
@@ -319,11 +319,14 @@ target_link_libraries(yuzu PRIVATE Boost::boost glad Qt${QT_MAJOR_VERSION}::Widg
 target_link_libraries(yuzu PRIVATE ${PLATFORM_LIBRARIES} Threads::Threads)
 
 target_link_libraries(yuzu PRIVATE Vulkan::Headers)
+
 if (NOT WIN32)
     target_include_directories(yuzu PRIVATE ${Qt${QT_MAJOR_VERSION}Gui_PRIVATE_INCLUDE_DIRS})
 endif()
 if (UNIX AND NOT APPLE)
     target_link_libraries(yuzu PRIVATE Qt${QT_MAJOR_VERSION}::DBus)
+    target_link_libraries(yuzu PRIVATE Qt${QT_MAJOR_VERSION}X11Extras)
+    target_link_libraries(yuzu PRIVATE ${X11_LIBRARIES})
 endif()
 
 target_compile_definitions(yuzu PRIVATE
diff --git a/src/yuzu/main.cpp b/src/yuzu/main.cpp
index 6c204416fa..6452bed506 100644
--- a/src/yuzu/main.cpp
+++ b/src/yuzu/main.cpp
@@ -164,6 +164,12 @@ extern "C" {
 __declspec(dllexport) unsigned long NvOptimusEnablement = 0x00000001;
 __declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
 }
+#elif defined(__linux__)
+#include <QtX11Extras/QX11Info>
+#include <X11/Xlib.h>
+#undef KeyPress
+#undef None
+#undef Success
 #endif
 
 constexpr int default_mouse_hide_timeout = 2500;
@@ -4269,6 +4275,15 @@ int main(int argc, char* argv[]) {
     setlocale(LC_ALL, "C");
 
     GMainWindow main_window{std::move(config), has_broken_vulkan};
+#if defined(__linux__)
+    if (QX11Info::isPlatformX11()) {
+        long disable_compositor = 1;
+        XChangeProperty(QX11Info::display(), static_cast<Window>(main_window.winId()),
+                        XInternAtom(QX11Info::display(), "_NET_WM_BYPASS_COMPOSITOR", false),
+                        XCB_ATOM_CARDINAL, 32, PropModeReplace, (unsigned char*)&disable_compositor,
+                        1);
+    }
+#endif
     // After settings have been loaded by GMainWindow, apply the filter
     main_window.show();