Possible crash fix for old nvidia proprietary driver with randr

1 files changed, 5 insertions, 2 deletions

diff --git a/src/QuickMedia.cpp b/src/QuickMedia.cpp
index cd1377a..cf2c0a6 100644
--- a/src/QuickMedia.cpp
+++ b/src/QuickMedia.cpp
@@ -118,9 +118,9 @@ static void for_each_active_monitor_output(Display *display, std::function<void(
 
     for(int i = 0; i < screen_res->noutput; ++i) {
         XRROutputInfo *out_info = XRRGetOutputInfo(display, screen_res, screen_res->outputs[i]);
-        if(out_info && out_info->connection == RR_Connected) {
+        if(out_info && out_info->crtc && out_info->connection == RR_Connected) {
             XRRCrtcInfo *crt_info = XRRGetCrtcInfo(display, screen_res, out_info->crtc);
-            if(crt_info) {
+            if(crt_info && crt_info->mode) {
                 const XRRModeInfo *mode_info = get_mode_info(screen_res, crt_info->mode);
                 if(mode_info)
                     callback_func(crt_info, mode_info);
@@ -565,6 +565,9 @@ namespace QuickMedia {
         if (!disp)
             throw std::runtime_error("Failed to open display to X11 server");
 
+        XSetErrorHandler(x_error_handler);
+        XSetIOErrorHandler(x_io_error_handler);
+
         wm_delete_window_atom = XInternAtom(disp, "WM_DELETE_WINDOW", False);
 
         int screen = DefaultScreen(disp);