Black consoles on L4T 64 bits R24 rev 2.1

My patch fixes the same error as your link. It is an unexpected coincidence.

diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index b47ba45..f44ec69 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -2367,7 +2367,7 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
 		}
 	}
 
- 	if (!fbcon_is_inactive(vc, info)) {
+ 	if (!fbcon_is_inactive(vc, info) || mode_switch) {
 		if (ops->blank_state != blank) {
 			ops->blank_state = blank;
 			fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW);
-- 
2.1.4