hello there, Source code is for (i = 0; i < dc->res_pool->pipe_count; i++) { if (res_ctx->pipe_ctx[i].stream) { pipe_ctx = &res_ctx->pipe_ctx[i]; *pipe_idx = i; break; } } /* Only supports eDP */ if (pipe_ctx->stream->sink->link->connector_signal != SIGNAL_TYPE_EDP) return false; Suggest add some code to deal with the case that the for loop doesn't find what it is looking for and so pipe_ctx is NULL. Regards David Binderman _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel