Plasma/Wayland Known Significant Issues

This page tracks the Wayland showstoppers throughout the stack. Showstoppers are major bugs, crashes, or missing features affecting the Wayland session but not the X11 session. This is part of KDE's Wayland goal.

Clipboard management

• When "Prevent empty clipboard" is enabled, Plasma sometimes fails to paste text copied from XWayland apps: https://bugs.kde.org/show_bug.cgi?id=424754
• When "Prevent empty clipboard" is disabled, text copied from a GTK app makes it into Klipper, but cannot be pasted after the GTK app quits: https://bugs.kde.org/show_bug.cgi?id=424649

Login/Session management

• Session restoring does not include Wayland native windows: https://bugs.kde.org/show_bug.cgi?id=436318. Our sessions management recover engine is based on the X Session Management Protocol and there is apparently currently no generic concept to do it on Wayland. But on Qt it's plugin-able and GNOME has —according to their wiki— an own implementation for some time.

KWin/compositing/window management

• User Switching doesn't work: https://bugs.kde.org/show_bug.cgi?id=439873
• When the compositor crashes, all apps die too: https://bugs.kde.org/show_bug.cgi?id=437709
• Windows don't get brought forward when activated by another app. The Wayland activation protocol that we proposed has been merged, and now every toolkit needs to add support for it.
  • Qt: In review: https://codereview.qt-project.org/c/qt/qtwayland/+/321246; support will come sometime for Qt 6
  • GTK: Support with GTK 4.3
  • Electron: https://github.com/electron/electron/issues/30912
• Secondary screen doesn't come back on after disconnecting and reconnecting: https://bugs.kde.org/show_bug.cgi?id=434683
• KWin crashes when monitor goes into standby: https://bugs.kde.org/show_bug.cgi?id=420160
• Very blurry fractional scaling for native Wayland windows due to using a downsampled 2x or 3x pixmap: https://gitlab.freedesktop.org/wayland/wayland-protocols/-/issues/34
• Changes made to cursor theme/size do not take effect in Qt and XWayland software until the session is restarted (takes effect immediately in GTK software though): https://bugs.kde.org/show_bug.cgi?id=420859
• Context menus mis-positioned in multi-screen setups: https://bugreports.qt.io/browse/QTBUG-85297
• Windows that were closed when maximized will open in the maximized position, but not the maximized state: https://bugs.kde.org/show_bug.cgi?id=437089
• No color management: https://bugs.kde.org/show_bug.cgi?id=439135 / https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/14
• Plasma applet context menus are covered up by applet popups: https://bugs.kde.org/show_bug.cgi?id=437139
• Automatically chosen scale factor on high DPI screens does not effect until manually applied: https://bugs.kde.org/show_bug.cgi?id=433460

Plasma

• Task Manager thumbnails sometimes don't work: https://bugs.kde.org/show_bug.cgi?id=427826
• Saving and restoring activities does not work
• Plasma crashes when connecting to and switching to an external HDMI monitor: https://bugs.kde.org/show_bug.cgi?id=419492

System Settings

• Wrong mouse is selected for configuration by default: https://bugs.kde.org/show_bug.cgi?id=438266
• Font Management KCM doesn't work/isn't visible: https://bugs.kde.org/show_bug.cgi?id=439375

Drag and Drop issues

• Can't abort drag-and-drop with the Esc key while dropped file is over Plasma panel or desktop: https://bugs.kde.org/show_bug.cgi?id=405267