diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index efc2826..759cdb8 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -1048,6 +1048,10 @@ drmmode_output_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, int num)
 
 	output->possible_crtcs = kencoder->possible_crtcs;
 	output->possible_clones = kencoder->possible_clones;
+
+	output->interlaceAllowed = true;
+	output->doubleScanAllowed = true;
+
 	return;
 }