Runout sensor without SD Card

Marlin/SanityCheck.h

@@ -111,12 +111,12 @@
 #endif
 
 /**
- * Filament Runout needs a pin and SD Support
+ * Filament Runout needs a pin and either SD Support or Auto print start detection
  */
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #if !HAS_FIL_RUNOUT
     #error "FILAMENT_RUNOUT_SENSOR requires FIL_RUNOUT_PIN."
-  #elif DISABLED(SDSUPPORT)
+  #elif DISABLED(SDSUPPORT) && DISABLED(PRINTJOB_TIMER_AUTOSTART)
     #error "FILAMENT_RUNOUT_SENSOR requires SDSUPPORT."
   #endif
 #endif