diff --git a/src/rendervulkan.hpp b/src/rendervulkan.hpp
index b5371703c0..d8a24e9379 100644
--- a/src/rendervulkan.hpp
+++ b/src/rendervulkan.hpp
@@ -475,6 +475,14 @@ struct gamescope_color_mgmt_luts
 		return bHasLut3D && bHasLut1D;
 	}
 
+	void shutdown()
+	{
+		bHasLut1D = false;
+		bHasLut3D = false;
+		vk_lut1d = nullptr;
+		vk_lut3d = nullptr;
+	}
+
 	void reset()
 	{
 		bHasLut1D = false;
diff --git a/src/steamcompmgr.cpp b/src/steamcompmgr.cpp
index 11a7cade6c..18be94d19c 100644
--- a/src/steamcompmgr.cpp
+++ b/src/steamcompmgr.cpp
@@ -5895,7 +5895,7 @@ error(Display *dpy, XErrorEvent *ev)
 	return 0;
 }
 
-[[noreturn]] static void
+static void
 steamcompmgr_exit(void)
 {
 	g_ImageWaiter.Shutdown();
@@ -5913,6 +5913,11 @@ steamcompmgr_exit(void)
 	g_HeldCommits[ HELD_COMMIT_BASE ] = nullptr;
 	g_HeldCommits[ HELD_COMMIT_FADE ] = nullptr;
 
+	for ( auto &lut : g_ColorMgmtLuts ) lut.shutdown();
+	for ( auto &lut : g_ColorMgmtLutsOverride ) lut.shutdown();
+	for ( auto &lut : g_ScreenshotColorMgmtLuts ) lut.shutdown();
+	for ( auto &lut : g_ScreenshotColorMgmtLutsHDR ) lut.shutdown();
+
 	if ( statsThreadRun == true )
 	{
 		statsThreadRun = false;
@@ -5936,15 +5941,16 @@ steamcompmgr_exit(void)
     wlserver_lock();
     wlserver_shutdown();
     wlserver_unlock(false);
-
-	pthread_exit(NULL);
 }
 
-static int
+[[noreturn]] static int
 handle_io_error(Display *dpy)
 {
 	xwm_log.errorf("X11 I/O error");
 	steamcompmgr_exit();
+
+	g_SteamCompMgrXWaylandServerMutex.unlock();
+	pthread_exit(NULL);
 }
 
 static bool