diff --git a/gdk/gdkdmabuf.c b/gdk/gdkdmabuf.c
index 7f8e5abb85..2e50467ff7 100644
--- a/gdk/gdkdmabuf.c
+++ b/gdk/gdkdmabuf.c
@@ -928,11 +928,9 @@ gdk_dmabuf_export_sync_file (int     dmabuf_fd,
  *
  * Things we do here:
  *
- * 1. Disallow any dmabuf format that we do not know.
+ * 1. Ignore non-linear modifiers.
  *
- * 2. Ignore non-linear modifiers.
- *
- * 3. Try and fix various inconsistencies between V4L and Mesa
+ * 2. Try and fix various inconsistencies between V4L and Mesa
  *    for linear modifiers, like the e.g. single-plane NV12.
  *
  * *** WARNING ***
@@ -951,8 +949,6 @@ gdk_dmabuf_sanitize (GdkDmabuf        *dest,
                      const GdkDmabuf  *src,
                      GError          **error)
 {
-  const GdkDrmFormatInfo *info;
-
   if (src->n_planes > GDK_DMABUF_MAX_PLANES)
     {
       g_set_error (error,
@@ -962,17 +958,6 @@ gdk_dmabuf_sanitize (GdkDmabuf        *dest,
       return FALSE;
     }
 
-  info = get_drm_format_info (src->fourcc);
-
-  if (info == NULL)
-    {
-      g_set_error (error,
-                   GDK_DMABUF_ERROR, GDK_DMABUF_ERROR_UNSUPPORTED_FORMAT,
-                   "Unsupported dmabuf format %.4s",
-                   (char *) &src->fourcc);
-      return FALSE;
-    }
-
   *dest = *src;
 
   if (src->modifier)
diff --git a/gdk/gdkdmabuftexture.c b/gdk/gdkdmabuftexture.c
index b5b85c23fe..648946c8b2 100644
--- a/gdk/gdkdmabuftexture.c
+++ b/gdk/gdkdmabuftexture.c
@@ -238,12 +238,11 @@ gdk_dmabuf_texture_new_from_builder (GdkDmabufTextureBuilder *builder,
     }
   else
     {
-      GDK_DISPLAY_DEBUG (display, DMABUF,
-                         "Falling back to generic RGBA for dmabuf format %.4s",
-                         (char *) &dmabuf.fourcc);
-      format = premultiplied ? GDK_MEMORY_R8G8B8A8_PREMULTIPLIED
-                             : GDK_MEMORY_R8G8B8A8;
-      is_yuv = FALSE;
+      g_set_error (error,
+                   GDK_DMABUF_ERROR, GDK_DMABUF_ERROR_UNSUPPORTED_FORMAT,
+                   "Unsupported dmabuf format %.4s",
+                   (char *) &dmabuf.fourcc);
+      return NULL;
     }
 
   gdk_display_init_dmabuf (display);