fix for a randr event spam bug

README.md

@@ -45,11 +45,9 @@ You have to use a config, place it in ~/.config/hypr/hypr.conf
 See the [Wiki](https://github.com/vaxerski/Hypr/wiki/Building) to see build instructions.
 
 # Known issues
-- RandR sometimes bugs at launch and starts spamming events, which will make the WM sluggish. Has never happened to me on a real machine though, only in a nested X11 session. (fix: restart X)
 - Picom's shadow and effects do not update for cheap animations while animating
-- Non-cheap animations are choppy (duh!)
-- The config is still pretty simple, although riceable!
-- Popups sometimes are created pretty small
+- Non-cheap animations are choppy (duh!)rgith
+- Popups sometimes are created a bit off
 
 # Contributions
 Refer to [CONTRIBUTING.md](https://github.com/vaxerski/Hypr/blob/main/CONTRIBUTING.md) and the [Wiki](https://github.com/vaxerski/Hypr/wiki/Contributing-&-Debugging) for contributing instructions and guidelines.

src/events/events.cpp

@@ -821,6 +821,28 @@ void Events::eventClientMessage(xcb_generic_event_t* event) {
 
 void Events::eventRandRScreenChange(xcb_generic_event_t* event) {
 
+    // fix sus randr events, that sometimes happen
+    // it will spam these for no reason
+    // so we check if we have > 9 consecutive randr events less than 1s between each
+    // and if so, we stop listening for them
+    const auto DELTA = std::chrono::duration_cast<std::chrono::milliseconds>(lastRandREvent - std::chrono::high_resolution_clock::now());
+
+    if (susRandREventNo < 10) {
+        if (DELTA.count() <= 1000) {
+            susRandREventNo += 1;
+            Debug::log(WARN, "Suspicious RandR event no. " + std::to_string(susRandREventNo) + "!");
+            if (susRandREventNo > 9)
+                Debug::log(WARN, "Disabling RandR event listening because of excess suspicious RandR events (bug!)");
+        }
+        else
+            susRandREventNo = 0;
+    }
+
+    if (susRandREventNo > 9)
+        return; 
+    // randr sus fixed
+    //
+
     // redetect screens
     g_pWindowManager->monitors.clear();
     g_pWindowManager->setupRandrMonitors();

src/events/events.hpp

@@ -34,4 +34,8 @@ namespace Events {
 
     // Fix focus on open
     inline std::deque<uint32_t> ignoredEvents;
+
+    // Fix spammed RandR events
+    inline std::chrono::high_resolution_clock::time_point lastRandREvent = std::chrono::high_resolution_clock::now();
+    inline int      susRandREventNo = 0;
 };

src/windowManager.cpp

@@ -313,12 +313,12 @@ void CWindowManager::recieveEvent() {
 
             default:
 
-                if ((EVENTCODE != 14) && (EVENTCODE != 13) && (EVENTCODE != 0) && (EVENTCODE != 22))
+                if ((EVENTCODE != 14) && (EVENTCODE != 13) && (EVENTCODE != 0) && (EVENTCODE != 22) && (TYPE - RandREventBase != XCB_RANDR_SCREEN_CHANGE_NOTIFY))
                     Debug::log(WARN, "Unknown event: " + std::to_string(ev->response_type & ~0x80));
                 break;
         }
 
-        if (TYPE - RandREventBase == XCB_RANDR_SCREEN_CHANGE_NOTIFY) {
+        if ((int)TYPE - RandREventBase == XCB_RANDR_SCREEN_CHANGE_NOTIFY && RandREventBase > 0) {
             Events::eventRandRScreenChange(ev);
             Debug::log(LOG, "Event dispatched RANDR_SCREEN_CHANGE");
         }