From a3c4d0ab1a7247253379e85efe73e3813f27b9ca Mon Sep 17 00:00:00 2001
From: bbedward <bbedward@gmail.com>
Date: Mon, 26 Oct 2026 19:51:30 -0400
Subject: [PATCH] cava: stop the capture stream from dragging the pipewire
 quantum down

ref #810
port 2.0
---
 quickshell/Modules/DBar/Widgets/AudioVisualization.qml | 4 ++--
 quickshell/Services/CavaService.qml                    | 5 +++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/quickshell/Modules/DBar/Widgets/AudioVisualization.qml b/quickshell/Modules/DBar/Widgets/AudioVisualization.qml
index 1f1128554..bd3d43e3c 100644
--- a/quickshell/Modules/DBar/Widgets/AudioVisualization.qml
+++ b/quickshell/Modules/DBar/Widgets/AudioVisualization.qml
@@ -29,7 +29,7 @@ Item {
     }
 
     Loader {
-        active: root.live
+        active: root.live && root.available
         sourceComponent: Component {
             Ref {
                 service: CavaService
@@ -39,7 +39,7 @@ Item {
 
     Connections {
         target: CavaService
-        enabled: root.live
+        enabled: root.live && root.available
         function onValuesChanged() {
             const v = CavaService.values;
             if (v.length < 6)
diff --git a/quickshell/Services/CavaService.qml b/quickshell/Services/CavaService.qml
index 315150bf0..d781c33f3 100644
--- a/quickshell/Services/CavaService.qml
+++ b/quickshell/Services/CavaService.qml
@@ -41,6 +41,11 @@ Singleton {
         id: cavaProcess
 
         running: root.cavaAvailable && root.refCount > 0
+        // cava asks for 512 frames, which drags the graph quantum down on spawn and back up on exit, audible on some hardware (#810)
+        environment: ({
+                "PIPEWIRE_LATENCY": "2400/48000",
+                "PULSE_LATENCY_MSEC": "50"
+            })
         command: ["sh", "-c", `cat <<'CAVACONF' > ${root._confPath}
 [general]
 framerate=25