1 files changed, 4 insertions, 1 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c b/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
index b195c55b3..ae883a253 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
@@ -134,7 +134,10 @@ update_framebuffer_state( struct st_context *st )
    else {
       strb = st_renderbuffer(fb->Attachment[BUFFER_STENCIL].Renderbuffer);
       if (strb) {
-         assert(strb->surface);
+         if (strb->is_rtt) {
+            /* rendering to a GL texture, may have to update surface */
+            st_update_renderbuffer_surface(st, strb);
+         }
          pipe_surface_reference(&framebuffer->zsbuf, strb->surface);
          update_framebuffer_size(framebuffer, strb->surface);
       }