Bug 479644 - In WindowHeap-based effects, using "Natural" algorithm with certain combination of the windows positions, some windows are unreachable by arrow keys on keyboard
Summary: In WindowHeap-based effects, using "Natural" algorithm with certain combinati...
Status: RESOLVED UNMAINTAINED
Alias: None
Product: kwin
Classification: Plasma
Component: effects-window-management (other bugs)
Version First Reported In: 5.27.10
Platform: Fedora RPMs Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: accessibility, usability
Depends on:
Blocks:
 
Reported: 2024-01-11 12:32 UTC by unblended_icing552
Modified: 2024-03-05 16:22 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In: 6.1
Sentry Crash Report:

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Description unblended_icing552 2024-01-11 12:32:50 UTC 
SUMMARY
Angle problem. Arrow keys are 4-way directional, and sometimes with a specific combination of windows positions, some windows can't be reached by using arrow keys as 4-way directions can't point to them.

The workaround is to set Layout mode to Closest instead of Natural (but Closest layout doesn't look as nice as Natural and the windows are too small).

The fix would be to use some spanning-tree algorithms to make sure that all windows are reachable with 4-way directional navigation.

STEPS TO REPRODUCE
1. To be honest, I don't know, but this issue does happen trust me bro

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.111.0
Qt Version: 5.15.11
Wayland session

ADDITIONAL INFORMATION
Comment 1 postix 2024-03-05 16:22:05 UTC 
Closest and Natural have been replaced by "Smart" in 6.1. 

[1] https://invent.kde.org/plasma/kwin/-/merge_requests/4916