Fix issue starting up client EGL on X11 backend

examples/layer-shell.c

@@ -247,7 +247,6 @@ int main(int argc, char **argv) {
 
 	struct wl_registry *registry = wl_display_get_registry(display);
 	wl_registry_add_listener(registry, &registry_listener, NULL);
-	wl_display_dispatch(display);
 	wl_display_roundtrip(display);
 
 	if (compositor == NULL) {

include/wlr/render/egl.h

@@ -20,6 +20,7 @@ struct wlr_egl {
 		bool swap_buffers_with_damage;
 		bool dmabuf_import;
 		bool dmabuf_import_modifiers;
+		bool bind_wayland_display;
 	} egl_exts;
 
 	struct wl_display *wl_display;

render/egl.c

@@ -160,8 +160,7 @@ bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *remote_display,
 	wlr_log(L_INFO, "Supported EGL extensions: %s", egl->exts_str);
 	wlr_log(L_INFO, "EGL vendor: %s", eglQueryString(egl->display, EGL_VENDOR));
 
-	if (!check_egl_ext(egl->exts_str, "EGL_WL_bind_wayland_display") ||
-			!check_egl_ext(egl->exts_str, "EGL_KHR_image_base")) {
+	if (!check_egl_ext(egl->exts_str, "EGL_KHR_image_base")) {
 		wlr_log(L_ERROR, "Required egl extensions not supported");
 		goto error;
 	}
@@ -177,6 +176,9 @@ bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *remote_display,
 	egl->egl_exts.dmabuf_import_modifiers =
 		check_egl_ext(egl->exts_str, "EGL_EXT_image_dma_buf_import_modifiers")
 		&& eglQueryDmaBufFormatsEXT && eglQueryDmaBufModifiersEXT;
+
+	egl->egl_exts.bind_wayland_display =
+		check_egl_ext(egl->exts_str, "EGL_WL_bind_wayland_display");
 	print_dmabuf_formats(egl);
 
 	return true;