Bug 506227

Summary:	Time zones don't get highlighted when moving mouse fast over the map
Product:	[Applications] systemsettings	Reporter:	Filip <filip.kendes1>
Component:	kcm_clock	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kdedev
Priority:	NOR
Version First Reported In:	6.4.1
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed In:	6.5.0
Sentry Crash Report:

Description Filip 2025-06-26 16:54:21 UTC

SUMMARY
https://bugs.kde.org/show_bug.cgi?id=506206

When you move mouse fast enough (doesn't even need to be super fast) it fails to highlight countries/zones

STEPS TO REPRODUCE
1. Open the time zone page
2. Move mouse fast over the the map


OBSERVED RESULT
Zone highlightning is lagging behind mouse

EXPECTED RESULT
Zones get highlighted as user moves mouse

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.4.1
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1
Kernel Version: 6.15.3-arch1-1 (64-bit)
Graphics Platform: Wayland

Comment 1 TraceyC 2025-06-27 17:06:33 UTC

I do see the lag you're describing on Fedora 42.
The good news is that I'm not able to reproduce this in Plasma built from git-master, the highlight follows the mouse near instantaneously on my system.

This fix will be shipped with 6.5.0. If it gets backported, it may show up in 6.4.2 but there are no guarantees. If you still see this bug with Plasma 6.5.0, feel free to reopen this report.