My KDE system tray icons are huge in Kubuntu 14.04:

Huge KDE System Tray icons

Notice that the Skype and wicd icons are sized properly, these are not KDE apps. However the KDE apps' icons (Klipper and Volume Control) are huge. I have checked and I already have the "Improve systemtray on HiDPI displays" patch applied on my system:

file:a/plasma/generic/applets/systemtray/package/contents/ui/IconsList.qml -> file:b/plasma/generic/applets/systemtray/package/contents/ui/IconsList.qml

--- a/plasma/generic/applets/systemtray/package/contents/ui/IconsList.qml
+++ b/plasma/generic/applets/systemtray/package/contents/ui/IconsList.qml
@@ -33,7 +33,7 @@
     id: root_item

     property int icons_size:     24  ///< Size of icons, icons are square i.e. width == height
-    property int icons_margins:  4  ///< Margins for icons
+    property int icons_margins:  icons_size/3  ///< Margins for icons
     property alias icons_number: repeater.count  ///< [readonly] Number of icons
     property alias model:    repeater.model; ///< Model for grid
     property int cell_size: icons_size + 2*icons_margins ///< [readonly] size of grid cell

file:a/plasma/generic/applets/systemtray/package/contents/ui/main.qml -> file:b/plasma/generic/applets/systemtray/package/contents/ui/main.qml

--- a/plasma/generic/applets/systemtray/package/contents/ui/main.qml
+++ b/plasma/generic/applets/systemtray/package/contents/ui/main.qml
@@ -34,7 +34,7 @@
     property int minimumWidth:  JS.MINIMUM_SIZE
     property int minimumHeight: JS.MINIMUM_SIZE

-    property int iconSize: Math.min(root_item.width, Math.min(root_item.height, JS.ICONS_SIZE))
+    property int iconSize: Math.min(root_item.width, Math.min(root_item.height, theme.defaultFont.mSize.height < 20 ? 24 : theme.largeIconSize)) //Math.min(root_item.width, Math.min(root_item.height, JS.ICONS_SIZE))

     // Data Models
     property list<ListModel> models: [
@@ -112,7 +112,7 @@

             content: IconsList {
                 id: popup_area
-                icons_size: JS.ICONS_SIZE
+                icons_size: root_item.iconSize
                 model: model_popup

Considering that I already have the patch, what might be the cause of the huge KDE System Tray icons?


Yes. You have "Improve systemtray on HiDPI displays" AND you have not set proper DPI. You should set True DPI value for you monitor in "Appearance-Fonts" setting in the System Control. If this does not work, set proper DPI in Xorg settings.

  • Thank you! After removing the checkbox "Force Fonts DPI" in "System Settings -> Application Appearance -> Fonts" the icons appear normally. – dotancohen Aug 18 '14 at 9:05
  • Wow, tried so many things to fix this issue, including pulling out much of my hair, before finally realizing all I had to do was force a dpi setting to fix it. – Ben Lee Jan 23 '16 at 22:08

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