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-rw-r--r--src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx b/src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx
index d80aa66f0..ad34c577c 100644
--- a/src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx
+++ b/src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx
@@ -668,8 +668,8 @@ static void surface_enter(void *data, struct wl_surface *wl_surface, struct wl_o
window->fl_win->size(window->fl_win->w(), window->fl_win->h());
win_driver->is_a_rescale(false);
if (window->fl_win->as_gl_window() && !window->fl_win->parent() &&
- post_scale != pre_scale) { // necessary for glpuzzle on 2-screen system
- Fl::wait(0);
+ post_scale != pre_scale) { // for opening toplevel GL window on 2-screen system
+ win_driver->Fl_Window_Driver::flush();
Fl::add_timeout(0.01, (Fl_Timeout_Handler)delayed_redraw, window->fl_win);
}
} else if (window->buffer) {