Bug 510509 - Kwin Wayland sucks at handling tablets + mice at the same time, both ghost their last cursor position
Summary: Kwin Wayland sucks at handling tablets + mice at the same time, both ghost th...
Status: RESOLVED DUPLICATE of bug 505663
Alias: None
Product: kwin
Classification: Plasma
Component: input (other bugs)
Version First Reported In: unspecified
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-10-11 22:38 UTC by kmdest
Modified: 2025-10-13 08:51 UTC (History)
3 users (show)

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Description kmdest 2025-10-11 22:38:20 UTC
SUMMARY
Annoying bug that acts as if a pointer is still where it was when you stop moving your mouse and start using a tablet to move the cursor around and vice versa. This is especially aggravating with the taskbar, the place you would most often start moving w/ tablet when going to paint, for example.

STEPS TO REPRODUCE
1. Move pointer to taskbar elements for example, but this works on any app that does "arming" effects when you hover upon something.
2. Teleport the cursor away to at least the territory of another window with the other device, mice save their positions before tablets did any motion so you can do it with them too.

OBSERVED RESULT
The previous spot refuses to acknowledge this change and continute to do hovering effects of whatever it normally would

EXPECTED RESULT
The cursor not having attachment issues

SOFTWARE/OS VERSIONS
CachyOS Linux
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.18.0
Qt Version: 6.10.0
Kernel Version: 6.17.1-2-cachyos (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor
Memory: 32 GiB of RAM (31.3 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 3070 Ti
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7C56
System Version: 2.0

Multiple monitors


ADDITIONAL INFORMATION

It works fine on X11, like everything else wayland.
Comment 1 kmdest 2025-10-11 23:28:04 UTC
Actually it's even worse than this with just tablets, you can trigger this bug by just grazing your taskbar icons and leaving the taskbar with only your tablet. It won't let the cursor leave. I'd bet this happens with regular windows too but I can't think of a good way to test that.
Comment 2 kmdest 2025-10-11 23:41:42 UTC
Disabling "panel and widget tooltips" in System Settings > Workspace > General at least dodges this from the taskbar, at dissapointing cost though.
Comment 3 David Redondo 2025-10-13 08:51:44 UTC
This is intentio

*** This bug has been marked as a duplicate of bug 505663 ***