Created attachment 187590 [details] screenshot of the issue SUMMARY I've noticed that if I right click on the Dolphin entry on the taskbar when it's not open, and I hover over either the "Remote" or "Recent" options, then the context menu that they create is broken with a black squared background, I'm attaching a screenshot of it. STEPS TO REPRODUCE 1. Have dolphin closed 2. Right click on the Dolphin icon on the taskbar 3. Hover over either the "Remote" or "Recent" options with the mouse cursor OBSERVED RESULT Their context menu is broken with a black squared background EXPECTED RESULT The context menus should follow the breeze theme SOFTWARE/OS VERSIONS Linux/KDE Plasma: Fedora KDE 43 KDE Plasma Version: 6.5.4 KDE Frameworks Version: 6.21.0 Qt Version: 6.10.1 ADDITIONAL INFORMATION
btw I've noticed that this issue was introduced with plasma 6.5, because I've just tested 6.4.5 and it didn't have this issue
this is also happening on KDE Linux with the Plasma 6.6 dev version
Can reproduce with menu translucency turned on in the Breeze QStyle. 100% reproducible for me with the "Remote", "Recent", and "Devices" sub-menus in the context menu of a pinned-but-not-running icon for Dolphin. The background of the desktop context menu is broken too, but in s different way: it's missing the blur entirely. Context menus of desktop files and folders are fine, though.
(In reply to Nate Graham from comment #3) > 100% reproducible for me with the "Remote", "Recent", and "Devices" I forgot to add that I can see the issue even without the translucency turned on because I can still see the black squared corners
Created attachment 187714 [details] issue visible even without transparency
*** Bug 513462 has been marked as a duplicate of this bug. ***
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-desktop/-/merge_requests/3469
Git commit 9778308e6057f4d6e29752fa3a1fbbae81cc5139 by Marco Martin. Committed on 22/01/2026 at 09:37. Pushed by mart into branch 'master'. applets/taskmanager: ensure submenus have translucent background When creating a qmenu by hand, it needs to make sure it has the Qt::WA_TranslucentBackground attribute, as PlasmaExtraComponent Menu has, or it won't render correctly M +4 -0 applets/taskmanager/backend.cpp https://invent.kde.org/plasma/plasma-desktop/-/commit/9778308e6057f4d6e29752fa3a1fbbae81cc5139
Git commit 83bce690dab6952ce186bf4fbadfd80881e14d90 by Marco Martin. Committed on 22/01/2026 at 10:48. Pushed by mart into branch 'Plasma/6.6'. applets/taskmanager: ensure submenus have translucent background When creating a qmenu by hand, it needs to make sure it has the Qt::WA_TranslucentBackground attribute, as PlasmaExtraComponent Menu has, or it won't render correctly (cherry picked from commit 9778308e6057f4d6e29752fa3a1fbbae81cc5139) Co-authored-by: Marco Martin <notmart@gmail.com> M +4 -0 applets/taskmanager/backend.cpp https://invent.kde.org/plasma/plasma-desktop/-/commit/83bce690dab6952ce186bf4fbadfd80881e14d90
hello, this issue started appearing again at least on CachyOS with KDE Plasma 6.6.3 and Qt 6.1, but now it happens on the default elements of the system tray, at least if they are on the top panel, I'll attach new screenshots
Created attachment 191116 [details] issue picture 1
Created attachment 191117 [details] Issue picture 2
Created attachment 191118 [details] Issue picture 3
yeah I can confirm this bug came back fully as I'm also having it on fedora with the panel on the bottom
Created attachment 191195 [details] issue came back
I can also reproduce this 100% with the context menus of System Tray icons when the panel is on the bottom. Git master, Qt 6.11 for me. We fixed it for the Task Manager already; it looks like we need the same fix for the System Tray.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/6461
Git commit 81c6b2d1453f4a09a744deefc0b549fbf95b5a86 by Nate Graham. Committed on 03/04/2026 at 13:54. Pushed by ngraham into branch 'master'. applets/systemtray: banish black corners in tray icons' context menus Apply the same fix that was applied in https://invent.kde.org/plasma/plasma-desktop/-/merge_requests/3469, but for the System Tray. This should be enough to fully resolve the issue. FIXED-IN: 6.6.4 M +4 -0 applets/systemtray/systemtray.cpp https://invent.kde.org/plasma/plasma-workspace/-/commit/81c6b2d1453f4a09a744deefc0b549fbf95b5a86
Git commit 96b451b05316cdfa51199ecae6dc143e1b2aa4f9 by Nate Graham. Committed on 03/04/2026 at 13:56. Pushed by ngraham into branch 'Plasma/6.6'. applets/systemtray: banish black corners in tray icons' context menus Apply the same fix that was applied in https://invent.kde.org/plasma/plasma-desktop/-/merge_requests/3469, but for the System Tray. This should be enough to fully resolve the issue. FIXED-IN: 6.6.4 (cherry picked from commit 81c6b2d1453f4a09a744deefc0b549fbf95b5a86) Co-authored-by: Nate Graham <nate@kde.org> M +4 -0 applets/systemtray/systemtray.cpp https://invent.kde.org/plasma/plasma-workspace/-/commit/96b451b05316cdfa51199ecae6dc143e1b2aa4f9
*** Bug 517923 has been marked as a duplicate of this bug. ***