Plasma/Wayland Known Significant Issues: Difference between revisions

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This page tracks the Wayland showstoppers throughout the stack.
This page tracks the Wayland showstoppers throughout the stack.


== KWin/compositing/window management ==
== KWin/compositing/window management ==
* 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
* 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
* 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).
* 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).
* Task Switchers become black and unusable after switching: https://bugs.kde.org/show_bug.cgi?id=415798
* XWayland windows are upscaled and look blurry and ugly in HiDPI mode: https://bugs.kde.org/show_bug.cgi?id=389191
* 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
* Cursor lags under high CPU load: https://bugs.kde.org/show_bug.cgi?id=421131
* KDE app windows don't remember maximized state: https://bugs.kde.org/show_bug.cgi?id=409919
* "Pin/keep open" functionality for Plasma applets does not work: https://bugs.kde.org/show_bug.cgi?id=400317
* "Pin/keep open" functionality for Plasma applets does not work: https://bugs.kde.org/show_bug.cgi?id=400317
* Spectacle takes low-resolution screenshots on HiDPI screens: https://bugs.kde.org/show_bug.cgi?id=409762
* Focus is inconsistent for XWayland apps: https://bugs.kde.org/show_bug.cgi?id=400987
 


== Remote control support incomplete ==
== 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).
* 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).
== NVIDIA ==
'''Partly fixed:''' Requires manual activation.
The NVIDIA blob uses a custom EGL extension which [https://phabricator.kde.org/D18570 Plasma 5.16 added support] for. It requires setting the ''KWIN_DRM_USE_EGL_STREAMS=1'' environment variable to activate. Other aspects of the "Wayland experience" with NVIDIA such as XWayland compatibility are outside of our influence.


== Input ==
== 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 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.
* No XModmap; we lack a functionality like XModmap to remap keys.
 
* Can't type accented characters in native Wayland Qt apps: https://bugs.kde.org/show_bug.cgi?id=411729


== Plasma ==
== Plasma ==
* 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.
* 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.
* 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.
* 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 ==
== Drag and Drop issues ==
 
* 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
* Dragging-and-dropping a file to https://imgur.com in Firefox brings down the whole session: https://bugs.kde.org/show_bug.cgi?id=421130
* plasmashell crashes when dragging a file from Dolphin over a panel: https://bugs.kde.org/show_bug.cgi?id=398440
* Drag and drop on Wayland: Wrong drop destination on drag'n drop https://bugs.kde.org/show_bug.cgi?id=422414
* Cursor sometimes erroneously displays "no drag possible" icon even when it is possible: https://bugs.kde.org/show_bug.cgi?id=383794
* https://bugs.kde.org/show_bug.cgi?id=390321
* Can't abort drag-and-drop with the Esc key: https://bugs.kde.org/show_bug.cgi?id=405267
* https://bugs.kde.org/show_bug.cgi?id=400014
* https://bugs.kde.org/show_bug.cgi?id=383794
* https://bugs.kde.org/show_bug.cgi?id=405267
* https://bugs.kde.org/show_bug.cgi?id=389261
* https://bugs.kde.org/show_bug.cgi?id=398440
* https://bugs.kde.org/show_bug.cgi?id=418683
* https://bugs.kde.org/show_bug.cgi?id=420949
* https://bugs.kde.org/show_bug.cgi?id=414834
* https://bugs.kde.org/show_bug.cgi?id=419017

Revision as of 09:16, 28 December 2020

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.
  • Can't type accented characters in native Wayland Qt apps: https://bugs.kde.org/show_bug.cgi?id=411729

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 activities.
  • Session sometimes crashes when changing Global Themes: https://bugs.kde.org/show_bug.cgi?id=422424

Drag and Drop issues