1 files changed, 42 insertions, 0 deletions
diff --git a/kde-plasma/plasma-pa/files/plasma-pa-5.27.6-make-setGenericVolume-keep-balance.patch b/kde-plasma/plasma-pa/files/plasma-pa-5.27.6-make-setGenericVolume-keep-balance.patch
new file mode 100644
index 000000000000..2067a4fd9742
--- /dev/null
+++ b/kde-plasma/plasma-pa/files/plasma-pa-5.27.6-make-setGenericVolume-keep-balance.patch
@@ -0,0 +1,42 @@
+From ffe6a4f4b6f56296165cea8651f35563d168ac89 Mon Sep 17 00:00:00 2001
+From: Quinten Kock <quintenkock@gmail.com>
+Date: Wed, 21 Jun 2023 20:51:11 +0200
+Subject: [PATCH] Make setGenericVolume keep balance between channels
+
+Previously setGenericVolume would apply the same amount of difference
+on all channels, making e.g. 100%/50% -> 80%/30%.
+
+This commit changes it to keep the ratios equal instead, so that the
+resulting volume would be 80%/40%, keeping the balance the same.
+
+BUG: 435840
+FIXED-IN: 5.27.7
+
+
+(cherry picked from commit cfe4a360f2640d7bd4e2d936804b100a299b268a)
+---
+ src/context.h | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/src/context.h b/src/context.h
+index 3d1f7525..969fa13b 100644
+--- a/src/context.h
++++ b/src/context.h
+@@ -123,9 +123,12 @@ public:
+         newVolume = qBound<qint64>(0, newVolume, PA_VOLUME_MAX);
+         pa_cvolume newCVolume = cVolume;
+         if (channel == -1) { // -1 all channels
+-            const qint64 diff = newVolume - pa_cvolume_max(&cVolume);
++            const qint64 orig = pa_cvolume_max(&cVolume);
++            const qint64 diff = newVolume - orig;
+             for (int i = 0; i < newCVolume.channels; ++i) {
+-                newCVolume.values[i] = qBound<qint64>(0, newCVolume.values[i] + diff, PA_VOLUME_MAX);
++                const qint64 channel = newCVolume.values[i];
++                const qint64 channelDiff = orig == 0 ? diff : diff * channel / orig;
++                newCVolume.values[i] = qBound<qint64>(0, newCVolume.values[i] + channelDiff, PA_VOLUME_MAX);
+             }
+         } else {
+             Q_ASSERT(newCVolume.channels > channel);
+-- 
+GitLab
+