https://bugs.kde.org/show_bug.cgi?id=469016

pallaswept <pallasw...@proton.me> changed:

           What    |Removed                     |Added
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                 CC|                            |pallasw...@proton.me

--- Comment #35 from pallaswept <pallasw...@proton.me> ---
This bug only happens when you enable the "show small window previews when
hovering over tabs"
option. Untick that box and your taskbar will never freeze and you won't have
to do any of the post-failure workarounds like resizing or moving the taskbar
mentioned above.

Watching the connections being created and destroyed in qpwmanager shows a
significant lag between hovering and showing the preview (by creating a capture
of the window and a new window and linking them), and eventually it lags far
enough that it fails to destroy the preview and the taskbar freezes up. As a
random guess I'd say it's freezing up because it's trying to create a
connection that already exists.

journalctl shows a stack dozens of of pipewire errors wthin a single second, at
the time of failure.

plasmashell[5753]: kpipewire_logging: Window not available
PipeWireSourceItem_QML_1355(0x556db42d99d0, parent=0x556db8368490, geometry=0,0
524x254)

Hope this info helps some of you. Sucks to not have window previews but sucks
slightly less than the entire panel freezing unpredictably.

Still happening on 5.27.6 BTW

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