stylus makes lines after I stop drawing in wine clip studio paint

[afictionsimp]

Hyprland version

Hyprland 0.49.0 built from branch at commit 9958d29 (version: bump to 0.49.0).
Date: Thu May 8 20:15:18 2025
Tag: v0.49.0, commits: 6098
built against:
aquamarine 0.8.0
hyprlang 0.6.3
hyprutils 0.7.1
hyprcursor 0.1.12
hyprgraphics 0.1.3

no flags were set

Regression

no

Describe the bug

when I stop drawing(stop pressing the stylus against the tablet) there is this leaky line that continues to draw as long as my stylus is hovered over the tablet, this issue only happens in clip studio paint in hyprland
( krita in hyprland works fine, clip studio paint in other wayland sessions like gnome and plasma also works fine)
sometimes the leak happens after drawing my third line or my second line and sometimes happens right away.

2025-06-23.13-53-13.mp4

Reproduction

install clip studio paint in wine(perferably 2.30 version link and set winecfg to windows 7 or 8.1) , and draw a line with the stylus for 1~3 times until that leaky line appears

System info and config

hyprconfig.txt
wine.log

[afictionsimp]

I compared the wine logs between hyprland and gnome and these 2 lines only appear in in the hyprland wine logs
0024:fixme:wintab32:x11drv_tablet_info Return proper size 0024:fixme:wintab32:x11drv_tablet_info Unhandled Category 401

EDIT: these two lines now appear in the gnome wine logs too but doesn't create the leaky line issue for some reason

libinput-list-devices-output.txt
xinput-list-output.txt

I'm using a huion h610 pro v2 with the official huion drivers, I tried open tablet driver before that but I had the same results

[afictionsimp]

I noticed that xinput list returns a different value on gnome
xinput-list-output.txt
xinput-list-output-gnome.txt

but then krita(xwayland) doesn't have this leaky line issue like on clip studio paint running in wine 10.9, so idk

[cyvvore]

+1, I have the issue as well. I've noticed the same program running with wine 10.12 under sway doesn't seem to have the issue. There's also been a bug report for this on wine, but it seems like this issue is on Hyprland's end

[afictionsimp]

If you want to try the patch on other programs (I only own CSP), I can setup a public repo to use with hyprpm.

I only own csp too but I encourage the public repo idea

Also thanks yall for the info.

Edit: tried ver 0.50 of hyprland but still no changes.

[DarkCreepy59]

I asked on the #wayland IRC channel and here's the response I got:

the way it is defined is to clarify that contact is not "pressure > 0", but that logical contact might only happen past some threshold (e.g., "pressure > 100")

Which confirms me that even though what Hyprland is doing is weird, it's still "normal" behaviour.

I also asked on the #winehackers IRC channel how I should go about fixing that and have been asked to first check what Windows does.

As for the plugin, I have set up a repo that works with hyprpm: https://github.com/DarkCreepy59/hyprland-plugins.

[cyvvore]

Well, I just tried the plugin and it fixed the issue for me, not just in CSP but in the other programs as well.

If the fix from now on has to be through a plugin then so be it, thank you for making a fix so quickly and with such clear instructions on the repo as well :D

[DarkCreepy59]

I made a patch for aquamarine today (hyprwm/aquamarine#194) that does what the plugin is supposed to do, but correctly. With this patch, Hyprland should behave like sway/wlroots now.
It has already been merged and should lend in the next aquamarine release or the next Hyprland release depending on the distro I think.

When it gets released, the plugin should not be necessary anymore.

[afictionsimp]

Great, I will mark this as the answer