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-rw-r--r--src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.cxx2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.cxx b/src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.cxx
index b37e0c483..5bf04fc31 100644
--- a/src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.cxx
+++ b/src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.cxx
@@ -372,6 +372,8 @@ void Fl_Wayland_Gl_Window_Driver::gl_start() {
int W2, H2;
wl_egl_window_get_attached_size(egl_window, &W2, &H2);
if (W2 != W || H2 != H) wl_egl_window_resize(egl_window, W, H, 0, 0);
+ glClearColor(0., 0., 0., 0.);
+ glClear(GL_COLOR_BUFFER_BIT);
}