From 551454f47660ba20e942815de58313538d30ebec Mon Sep 17 00:00:00 2001
From: qazal <77887910+Qazalin@users.noreply.github.com>
Date: Fri, 16 Jan 2026 18:01:26 -0500
Subject: [PATCH] viz: fix wave sort, show message if sqtt trace is empty
 (#14190)

* show message if sqtt trace is empty

* work

* fix wave sort

* back
---
 tinygrad/viz/serve.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tinygrad/viz/serve.py b/tinygrad/viz/serve.py
index 34b448980e..2d9af7d89c 100755
--- a/tinygrad/viz/serve.py
+++ b/tinygrad/viz/serve.py
@@ -509,7 +509,9 @@ def get_render(query:str) -> dict:
   if fmt == "prg-pmc": return unpack_pmc(data[0])
   if fmt.startswith("prg-pkts"):
     ret = {}
-    with soft_err(lambda err:ret.update(err)): ret = {"value":get_profile(sqtt_timeline(data)), "content_type":"application/octet-stream"}
+    with soft_err(lambda err:ret.update(err)):
+      if (events:=get_profile(sqtt_timeline(data), sort_fn=row_tuple)): ret = {"value":events, "content_type":"application/octet-stream"}
+      else: ret = {"src":"No SQTT trace on this SE."}
     return ret
   if fmt == "prg-sqtt":
     ret = {}