diff --git a/glfw/x11_init.c b/glfw/x11_init.c
index cf9bc5d1f..ea5b0f3b2 100644
--- a/glfw/x11_init.c
+++ b/glfw/x11_init.c
@@ -457,7 +457,7 @@ static GLFWbool initExtensions(void)
 
 // Retrieve system content scale via folklore heuristics
 //
-static void getSystemContentScale(float* xscale, float* yscale)
+void _glfwGetSystemContentScaleX11(float* xscale, float* yscale, GLFWbool bypass_cache)
 {
     // NOTE: Default to the display-wide DPI as we don't currently have a policy
     //       for which monitor a window is considered to be on
@@ -469,7 +469,20 @@ static void getSystemContentScale(float* xscale, float* yscale)
     // NOTE: Basing the scale on Xft.dpi where available should provide the most
     //       consistent user experience (matches Qt, Gtk, etc), although not
     //       always the most accurate one
-    char* rms = XResourceManagerString(_glfw.x11.display);
+    char* rms = NULL;
+    char* owned_rms = NULL;
+
+    if (bypass_cache)
+    {
+        _glfwGetWindowPropertyX11(_glfw.x11.root,
+                                  _glfw.x11.RESOURCE_MANAGER,
+                                  XA_STRING,
+                                  (unsigned char**) &owned_rms);
+        rms = owned_rms;
+    } else {
+        rms = XResourceManagerString(_glfw.x11.display);
+    }
+
     if (rms)
     {
         XrmDatabase db = XrmGetStringDatabase(rms);
@@ -486,6 +499,7 @@ static void getSystemContentScale(float* xscale, float* yscale)
 
             XrmDestroyDatabase(db);
         }
+        XFree(owned_rms);
     }
 
     *xscale = xdpi / 96.f;
@@ -632,8 +646,10 @@ int _glfwPlatformInit(void)
     _glfw.x11.screen = DefaultScreen(_glfw.x11.display);
     _glfw.x11.root = RootWindow(_glfw.x11.display, _glfw.x11.screen);
     _glfw.x11.context = XUniqueContext();
+    _glfw.x11.RESOURCE_MANAGER = XInternAtom(_glfw.x11.display, "RESOURCE_MANAGER", True);
+    XSelectInput(_glfw.x11.display, _glfw.x11.root, PropertyChangeMask);
 
-    getSystemContentScale(&_glfw.x11.contentScaleX, &_glfw.x11.contentScaleY);
+    _glfwGetSystemContentScaleX11(&_glfw.x11.contentScaleX, &_glfw.x11.contentScaleY, GLFW_FALSE);
 
     if (!initExtensions())
         return GLFW_FALSE;
diff --git a/glfw/x11_platform.h b/glfw/x11_platform.h
index bb4ee1105..2430065f5 100644
--- a/glfw/x11_platform.h
+++ b/glfw/x11_platform.h
@@ -283,6 +283,9 @@ typedef struct _GLFWlibraryX11
     Atom            ATOM_PAIR;
     Atom            GLFW_SELECTION;
 
+    // XRM database atom
+    Atom            RESOURCE_MANAGER;
+
     struct {
         GLFWbool    available;
         void*       handle;
@@ -408,7 +411,6 @@ typedef struct _GLFWcursorX11
 
 } _GLFWcursorX11;
 
-
 void _glfwPollMonitorsX11(void);
 void _glfwSetVideoModeX11(_GLFWmonitor* monitor, const GLFWvidmode* desired);
 void _glfwRestoreVideoModeX11(_GLFWmonitor* monitor);
@@ -425,4 +427,5 @@ void _glfwGrabErrorHandlerX11(void);
 void _glfwReleaseErrorHandlerX11(void);
 void _glfwInputErrorX11(int error, const char* message);
 
+void _glfwGetSystemContentScaleX11(float* xscale, float* yscale, GLFWbool bypass_cache);
 void _glfwPushSelectionToManagerX11(void);
diff --git a/glfw/x11_window.c b/glfw/x11_window.c
index f2c64e475..f1b970c34 100644
--- a/glfw/x11_window.c
+++ b/glfw/x11_window.c
@@ -1144,6 +1144,24 @@ static void releaseMonitor(_GLFWwindow* window)
     }
 }
 
+static void onConfigChange()
+{
+    float xscale, yscale;
+    _glfwGetSystemContentScaleX11(&xscale, &yscale, GLFW_TRUE);
+
+    if (xscale != _glfw.x11.contentScaleX || yscale != _glfw.x11.contentScaleY)
+    {
+        _GLFWwindow* window = _glfw.windowListHead;
+        _glfw.x11.contentScaleX = xscale;
+        _glfw.x11.contentScaleY = yscale;
+        while (window)
+        {
+            _glfwInputWindowContentScale(window, xscale, yscale);
+            window = window->next;
+        }
+    }
+}
+
 // Process the specified X event
 //
 static void processEvent(XEvent *event)
@@ -1161,6 +1179,14 @@ static void processEvent(XEvent *event)
         }
     }
 
+    if (event->type == PropertyNotify &&
+        event->xproperty.window == _glfw.x11.root &&
+        event->xproperty.atom == _glfw.x11.RESOURCE_MANAGER)
+    {
+        onConfigChange();
+        return;
+    }
+
     if (event->type == GenericEvent)
     {
         if (_glfw.x11.xi.available)