From 3be336afa80d2fc792287d2abf71879140f5b143 Mon Sep 17 00:00:00 2001
From: Nick Mowen <nickmowen213@gmail.com>
Date: Sun, 25 Sep 2022 07:45:25 -0600
Subject: [PATCH] Handle case where hwaccel is not setup

---
 frigate/stats.py          |  7 +++--
 web/src/routes/System.jsx | 54 ++++++++++++++++++++++-----------------
 2 files changed, 36 insertions(+), 25 deletions(-)

diff --git a/frigate/stats.py b/frigate/stats.py
index e39d47ba0..48ea9f30b 100644
--- a/frigate/stats.py
+++ b/frigate/stats.py
@@ -86,10 +86,13 @@ def get_temperatures() -> dict[str, float]:
 def get_gpu_stats(config: FrigateConfig) -> dict[str, dict]:
     """Parse GPUs from hwaccel args and use for stats."""
     hwaccel_args = set(
-        map(lambda camera: camera.ffmpeg.hwaccel_args, config.cameras.values())
-    )
+        map(lambda camera: camera.ffmpeg.hwaccel_args if camera.ffmpeg.hwaccel_args else None, config.cameras.values())
+    ).remove(None)
     stats: dict[str, dict] = {}
 
+    if not hwaccel_args:
+        return None
+
     for args in hwaccel_args:
         if "cuvid" in args:
             # nvidia GPU
diff --git a/web/src/routes/System.jsx b/web/src/routes/System.jsx
index 905fb14e0..7ea5fe201 100644
--- a/web/src/routes/System.jsx
+++ b/web/src/routes/System.jsx
@@ -134,29 +134,37 @@ export default function System() {
           </div>
 
           <Heading size="lg">GPUs</Heading>
-          <div data-testid="gpus" className="grid grid-cols-1 3xl:grid-cols-3 md:grid-cols-2 gap-4 p-2 px-4">
-            {gpuNames.map((gpu) => (
-              <div
-                key={gpu}
-                className="dark:bg-gray-800 shadow-md hover:shadow-lg rounded-lg transition-shadow p-4 m-2"
-              >
-                <Table className="w-full">
-                  <Thead>
-                    <Tr>
-                      <Th>Gpu %</Th>
-                      <Th>Memory %</Th>
-                    </Tr>
-                  </Thead>
-                  <Tbody>
-                    <Tr>
-                      <Td>{gpu_usages[gpu]['gpu']}</Td>
-                      <Td>{gpu_usages[gpu]['memory']}</Td>
-                    </Tr>
-                  </Tbody>
-                </Table>
-              </div>
-            ))}
-          </div>
+          {!gpu_usages ? (
+            <div className="p-4">
+              <Link href={'https://docs.frigate.video/configuration/hardware_acceleration'}>
+                Hardware acceleration has not been setup, see the docs to setup hardware acceleration.
+              </Link>
+            </div>
+          ) : (
+            <div data-testid="gpus" className="grid grid-cols-1 3xl:grid-cols-3 md:grid-cols-2 gap-4 p-2 px-4">
+              {gpuNames.map((gpu) => (
+                <div
+                  key={gpu}
+                  className="dark:bg-gray-800 shadow-md hover:shadow-lg rounded-lg transition-shadow p-4 m-2"
+                >
+                  <Table className="w-full">
+                    <Thead>
+                      <Tr>
+                        <Th>Gpu %</Th>
+                        <Th>Memory %</Th>
+                      </Tr>
+                    </Thead>
+                    <Tbody>
+                      <Tr>
+                        <Td>{gpu_usages[gpu]['gpu']}</Td>
+                        <Td>{gpu_usages[gpu]['memory']}</Td>
+                      </Tr>
+                    </Tbody>
+                  </Table>
+                </div>
+              ))}
+            </div>
+          )}
 
           <Heading size="lg">Cameras</Heading>
           <div data-testid="cameras" className="grid grid-cols-1 3xl:grid-cols-3 md:grid-cols-2 gap-4">