Plasma/Wayland Known Significant Issues: Difference between revisions

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(Add tracking bug for window activation and launch feedback https://invent.kde.org/plasma/kwin/-/issues/39)
(Supposedly fixed by https://invent.kde.org/qt/qt/qtwayland/-/merge_requests/4)
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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 [[Goals/Wayland|Wayland goal]].
This page tracks the Wayland showstoppers throughout the stack.




== Clipboard management ==
== KWin/compositing/window management ==
* Plasma fails to paste text copied from XWayland apps: https://bugs.kde.org/show_bug.cgi?id=424754
* No cross-app window activation/focus protocol. As a result, windows don't get brought forward when activated by another app: https://bugs.kde.org/show_bug.cgi?id=424795
* 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
* No vertical/horizontal maximize of Wayland native clients. KWin uses NetWM modes internally to do this. Works with Xwayland clients. Would also work for Wayland clients, just the state cannot be exported to Wayland (c.f. Quick tiling).
* Can't copy text from notifications: https://bugs.kde.org/show_bug.cgi?id=434675 (very annoying for text messages with a long code you need to enter into a website for 2-factor authentication purposes)
* XWayland windows are upscaled and look blurry and ugly in HiDPI mode: https://bugs.kde.org/show_bug.cgi?id=389191
* Cursor lags under high CPU load: https://bugs.kde.org/show_bug.cgi?id=421131
* "Pin/keep open" functionality for Plasma applets does not work: https://bugs.kde.org/show_bug.cgi?id=400317
* Focus is inconsistent for XWayland apps: https://bugs.kde.org/show_bug.cgi?id=400987
 
 
== Remote control support incomplete ==
* Our screencasting API handles remote video streaming, but there is no API for remote input, so things like TeamViewer have no way to work (and would need to be ported to use those APIs once they exist).




== Login/Session management ==
== Input ==
* 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 [https://www.x.org/releases/X11R7.7/doc/libSM/xsmp.html 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 [https://wiki.gnome.org/Projects/SessionManagement/GnomeSession their wiki]— an own implementation for some time.
* No configurable mouse gestures; X has the ability to accept fake input events to allow programs such as Easystroke. With the new security model of Wayland, such a program would need to be part of the compositor.
* No XModmap; we lack a functionality like XModmap to remap keys.


== KWin/compositing/window management ==
* When the compositor crashes, all apps crash too: https://bugreports.qt.io/browse/QTBUG-85631
* Window activation / launch feedback: https://invent.kde.org/plasma/kwin/-/issues/39
** Windows don't get brought forward when activated by another app: https://bugs.kde.org/show_bug.cgi?id=424795
** No feedback on the Task Manager when an app is launched: https://bugs.kde.org/show_bug.cgi?id=402903
** No feedback on the cursor when an app is launched: https://bugs.kde.org/show_bug.cgi?id=405624
* Secondary screen doesn't come back on after disconnecting and reconnecting: https://bugs.kde.org/show_bug.cgi?id=434683
* 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
* Various menus appear as a separate window:
** Titlebar app menu: https://bugs.kde.org/show_bug.cgi?id=430662
** Klipper history menu: https://bugs.kde.org/show_bug.cgi?id=436249
* Qt and XWayland apps do not respect changes to the cursor theme (but GTK apps do): https://bugs.kde.org/show_bug.cgi?id=436303


== Plasma ==
== Plasma ==
* Plasma randomly crashes in QWaylandClientExtensionPrivate::handleRegistryGlobal() when changing settings in System Settings: https://bugs.kde.org/show_bug.cgi?id=414834
* Session restoring does not include Wayland native windows. Our sessions management recover engine is based on the [https://www.x.org/releases/X11R7.7/doc/libSM/xsmp.html 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 [https://wiki.gnome.org/Projects/SessionManagement/GnomeSession their wiki] an own implementation for some time.
* plasma-browser-integration-host crashes in a loop when Firefox asks to be the default browser: https://bugs.kde.org/show_bug.cgi?id=435811
* No window move on empty area in breeze; This broke with switch to XdgShellV6. Needs new API added to Qt (native interface), KWayland and Breeze.
* Context menus close immediately when the tooltip for thing that you right-clicked on closes itself: https://bugs.kde.org/show_bug.cgi?id=417939 / https://bugreports.qt.io/browse/QTBUG-83972
* No activities.
* Cannot unlock session after external screen turns off: https://bugs.kde.org/show_bug.cgi?id=428706
* Keyboard Layout indicator system tray item doesn't work: https://bugs.kde.org/show_bug.cgi?id=390079
* Saving and restoring activities does not work (everything else does, though).
* Session sometimes crashes when changing Global Themes: https://bugs.kde.org/show_bug.cgi?id=422424
* Task Manager thumbnails sometimes don't work: https://bugs.kde.org/show_bug.cgi?id=427826




== Drag and Drop issues ==
== 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
* While doing drag-and-drop in Dolphin, releasing cursor re-positions it and file is dragged into the wrong folder: https://bugs.kde.org/show_bug.cgi?id=422414
* Session crashes when hovering over task manager after dragging an entry in task manager to another virtual desktop: https://bugs.kde.org/show_bug.cgi?id=418683
* plasmashell crashes when dragging a file from Dolphin over a panel: https://bugs.kde.org/show_bug.cgi?id=398440
* Cursor sometimes erroneously displays "no drag possible" icon even when it is possible: https://bugs.kde.org/show_bug.cgi?id=383794
* Can't abort drag-and-drop with the Esc key: https://bugs.kde.org/show_bug.cgi?id=405267

Revision as of 20:26, 11 May 2021

This page tracks the Wayland showstoppers throughout the stack.


KWin/compositing/window management


Remote control support incomplete

  • Our screencasting API handles remote video streaming, but there is no API for remote input, so things like TeamViewer have no way to work (and would need to be ported to use those APIs once they exist).


Input

  • No configurable mouse gestures; X has the ability to accept fake input events to allow programs such as Easystroke. With the new security model of Wayland, such a program would need to be part of the compositor.
  • No XModmap; we lack a functionality like XModmap to remap keys.


Plasma

  • Session restoring does not include Wayland native windows. 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.
  • No window move on empty area in breeze; This broke with switch to XdgShellV6. Needs new API added to Qt (native interface), KWayland and Breeze.
  • No activities.
  • Keyboard Layout indicator system tray item doesn't work: https://bugs.kde.org/show_bug.cgi?id=390079
  • Session sometimes crashes when changing Global Themes: https://bugs.kde.org/show_bug.cgi?id=422424


Drag and Drop issues

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