diff --git a/src/gallium/drivers/radeonsi/si_gfx_cs.c b/src/gallium/drivers/radeonsi/si_gfx_cs.c
index 4b561ac1be3..007a52372ed 100644
--- a/src/gallium/drivers/radeonsi/si_gfx_cs.c
+++ b/src/gallium/drivers/radeonsi/si_gfx_cs.c
@@ -358,8 +358,12 @@ void si_begin_new_gfx_cs(struct si_context *ctx, bool first_cs)
                  SI_CONTEXT_INV_L2 | SI_CONTEXT_START_PIPELINE_STATS;
    ctx->pipeline_stats_enabled = -1;
 
-   /* We don't know if the last draw used NGG. */
-   if (ctx->screen->info.has_vgt_flush_ngg_legacy_bug)
+   /* We don't know if the last draw used NGG or NGG fast launch because it can be a different
+    * process. When switching NGG->legacy or NGG->FAST_LAUNCH, we need to flush VGT for certain
+    * hw generations.
+    */
+   if ((ctx->screen->info.has_vgt_flush_ngg_legacy_bug && !ctx->ngg) ||
+       (ctx->chip_class == GFX10 && ctx->ngg_culling & SI_NGG_CULL_GS_FAST_LAUNCH_ALL))
       ctx->flags |= SI_CONTEXT_VGT_FLUSH;
 
    if (ctx->border_color_buffer) {