Bug 505132

Summary:	Placing a Notes Widget on a thick vertical panel freezes plasmashell
Product:	[Plasma] plasmashell	Reporter:	isaacmcnatty
Component:	Notes widget	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED FIXED
Severity:	major	CC:	cwo.kde, nate, skylyn.bilen.sb
Priority:	NOR
Version First Reported In:	6.3.5
Target Milestone:	1.0
Platform:	Other
OS:	Linux
Latest Commit:	https://invent.kde.org/plasma/kdeplasma-addons/-/commit/d999aa5d678028ab613b786bff2dbae38d827227	Version Fixed In:	6.4.0
Sentry Crash Report:

Description isaacmcnatty 2025-06-02 17:53:48 UTC

SUMMARY
Placing a Notes Widget on a thick vertical panel freezes plasmashell

STEPS TO REPRODUCE
1. Add a Vertical Panel that is 280px wide
2. Place a Notes Widget on it 
3. Plasmashell is frozen 

OBSERVED RESULT
Plasmashell is frozen and continues to freeze when restarting it

EXPECTED RESULT
Plasmashell still works

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: CachyOS
KDE Plasma Version: 5.3.5
KDE Frameworks Version: 6.14
Qt Version: 6.9

Comment 1 cwo 2025-06-02 18:25:17 UTC

Can reproduce on master

Comment 2 Bug Janitor Service 2025-06-02 19:32:32 UTC

A possibly relevant merge request was started @ https://invent.kde.org/plasma/kdeplasma-addons/-/merge_requests/851

Comment 3 cwo 2025-06-02 19:40:01 UTC

I should have a solution for 6.4. Let me know if you need instructions on how to remove the widget while plasmashell is frozen.

Comment 4 cwo 2025-06-03 18:48:03 UTC

Git commit d999aa5d678028ab613b786bff2dbae38d827227 by Christoph Wolk.
Committed on 03/06/2025 at 18:43.
Pushed by cwo into branch 'master'.

applets/notes: fix fullRepresentation in panel

The fullRepresentation does not take into account that it could be
placed in a very thick panel. It sets minimum width in that case (to
constrain the popup), but they also apply to the fullRepresentation in
the panel directly, is much smaller than that case can handle, and
causes it to go on a wild resizing spree that locks up plasmashell
completely.

Instead, we do not set minimum widths in that case, which does the only
sensible thing: a square widget that fits the panel size. While we're at
it, also tweak the other panel checks that only apply in case of
compactRepresentation-in-panel; there is for example no point to having
the pin button for fullRepresentation-in-panel as it's not going to
close anyway.
FIXED-IN: 6.4.0

M  +18   -7    applets/notes/package/contents/ui/main.qml

https://invent.kde.org/plasma/kdeplasma-addons/-/commit/d999aa5d678028ab613b786bff2dbae38d827227

Comment 5 Nate Graham 2025-06-09 20:04:11 UTC

*** Bug 505310 has been marked as a duplicate of this bug. ***