diff --unified --recursive --text --color wlroots-git.orig/types/output/render.c wlroots-git.new/types/output/render.c
--- wlroots-git.orig/types/output/render.c    2022-06-18 17:18:42.259951901 -0500
+++ wlroots-git.new/types/output/render.c    2022-06-18 17:19:33.441946419 -0500
@@ -311,20 +311,5 @@
}

uint32_t wlr_output_preferred_read_format(struct wlr_output *output) {
-    struct wlr_renderer *renderer = output->renderer;
-    assert(renderer != NULL);
-
-    if (!renderer->impl->preferred_read_format || !renderer->impl->read_pixels) {
-        return DRM_FORMAT_INVALID;
-    }
-
-    if (!output_attach_back_buffer(output, &output->pending, NULL)) {
-        return false;
-    }
-
-    uint32_t fmt = renderer->impl->preferred_read_format(renderer);
-
-    output_clear_back_buffer(output);
-
-    return fmt;
+    return DRM_FORMAT_XRGB8888;
}