Hyprland Switching from tablet back to mouse crashes some applications

System Info and Version

System/Version info

Hyprland, built from branch  at commit 0ebb43c1a37e7321e5ed7223ea85ed555cc82735  ().
Date: 2024-06-01
Tag: , commits: 

flags: (if any)


System Information:
System name: Linux
Node name: JuliansFramework
Release: 6.9.2
Version: #1-NixOS SMP PREEMPT_DYNAMIC Sat May 25 14:30:56 UTC 2024


GPU information: 
06:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 22 [Radeon RX 6700/6700 XT/6750 XT / 6800M/6850M XT] [1002:73df] (rev c5) (prog-if 00 [VGA controller])


os-release: ANSI_COLOR="1;34"
BUG_REPORT_URL="https://github.com/NixOS/nixpkgs/issues"
BUILD_ID="24.11.20240529.ad57eef"
DOCUMENTATION_URL="https://nixos.org/learn.html"
HOME_URL="https://nixos.org/"
ID=nixos
IMAGE_ID=""
IMAGE_VERSION=""
LOGO="nix-snowflake"Hyprland, built from branch  at commit 0ebb43c1a37e7321e5ed7223ea85ed555cc82735  ().
Date: 2024-06-01
Tag: , commits:

flags: (if any)


System Information:
System name: Linux
Node name: JuliansFramework
Release: 6.9.2
Version: #1-NixOS SMP PREEMPT_DYNAMIC Sat May 25 14:30:56 UTC 2024


GPU information:
06:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 22 [Radeon RX 6700/6700 XT/6750 XT / 6800M/6850M XT] [1002:73df] (rev c5) (prog-if 00 [VGA controller])


os-release: ANSI_COLOR="1;34"
BUG_REPORT_URL="https://github.com/NixOS/nixpkgs/issues"
BUILD_ID="24.11.20240529.ad57eef"
DOCUMENTATION_URL="https://nixos.org/learn.html"
HOME_URL="https://nixos.org/"
ID=nixos
IMAGE_ID=""
IMAGE_VERSION=""
LOGO="nix-snowflake"
NAME=NixOS
PRETTY_NAME="NixOS 24.11 (Vicuña)"
SUPPORT_URL="https://nixos.org/community.html"
VERSION="24.11 (Vicuña)"
VERSION_CODENAME="vicuña"
VERSION_ID="24.11"


plugins:


NAME=NixOS
PRETTY_NAME="NixOS 24.11 (Vicuña)"
SUPPORT_URL="https://nixos.org/community.html"
VERSION="24.11 (Vicuña)"
VERSION_CODENAME="vicuña"
VERSION_ID="24.11"


plugins:

======Config-Start======


Config File: /home/julian/.config/hypr/hyprland.conf: Read Succeeded
exec-once = /nix/store/bnipzdfv788l7yvgn7k7s7gp76sd1zpz-dbus-1.14.10/bin/dbus-update-activation-environment --systemd --all && systemctl --user stop hyprland-session.target && systemctl --user start hyprland-session.target
$lock_bg=/home/julian/Pictures/ufp_ac.jpg
$mainMod=SUPER
$screenshotDir=/home/julian/Pictures/Screenshots
animations {
  bezier=myBezier, 0.05, 0.9, 0.1, 1.05
  animation=windows, 1, 5, myBezier 
  animation=windowsOut, 1, 5, default, popin 80%
  animation=border, 1, 7, default
  animation=borderangle, 1, 5, default
  animation=fade, 1, 5, default
  animation=workspaces, 1, 5, default
  enabled=true
}

binds {
  allow_workspace_cycles=true
}

decoration {
  blur {
    enabled=true
    new_optimizations=true
    passes=1
    size=3
  }
  col.shadow=rgb(292828)
  drop_shadow=true
  rounding=5
  shadow_range=4
  shadow_render_power=3
}

dwindle {
  force_split=2
  preserve_split=true
  pseudotile=true
}

general {
  border_size=2
  col.active_border=rgb(a9b665) rgb(7daea3) 45deg
  col.inactive_border=rgb(504945)
  col.nogroup_border=rgb(504945)
  col.nogroup_border_active=rgb(ea6962) rgb(d3869b) 45deg
  gaps_in=3
  gaps_out=0
  layout=dwindle
}

gestures {
  workspace_swipe=true
}

group {
  groupbar {
    col.active=rgb(a9b665) rgb(7daea3) 45deg
    col.inactive=rgb(504945)
    col.locked_active=rgb(89b482) rgb(d3869b) 45deg
    col.locked_inactive=rgb(504945)
    text_color=rgb(ddc7a1)
  }
  col.border_active=rgb(a9b665) rgb(7daea3) 45deg
  col.border_inactive=rgb(504945)
  col.border_locked_active=rgb(89b482) rgb(d3869b) 45deg
  col.border_locked_inactive=rgb(504945)
}

input {
  tablet {
    output=eDP-1
  }

  touchpad {
    natural_scroll=true
  }
  follow_mouse=1
  kb_layout=de
  sensitivity=0
}

misc {
  background_color=rgb(292828)
  col.splash=rgb(ddc7a1)
}

xwayland {
  force_zero_scaling=true
}
bind=$mainMod, RETURN, exec, alacritty
bind=$mainMod, A, exec, dolphin
bind=$mainMod, D, exec, rofi -show drun
bind=$mainMod, C, exec, cliphist list | rofi -dmenu | cliphist decode | wl-copy
bind=$mainMod SHIFT, C, exec, cliphist wipe
bind=$mainMod SHIFT, Q, killactive,
bind=$mainMod SHIFT, E, exit,
bind=$mainMod SHIFT, SPACE, togglefloating,
bind=$mainMod, T, pseudo, # dwindle
bind=$mainMod, V, togglesplit, # dwindle
bind=$mainMod, F, fullscreen 
bind=$mainMod, left, movefocus, l
bind=$mainMod, right, movefocus, r
bind=$mainMod, up, movefocus, u
bind=$mainMod, down, movefocus, d
bind=$mainMod, H, movefocus, l
bind=$mainMod, L, movefocus, r
bind=$mainMod, K, movefocus, u
bind=$mainMod, J, movefocus, d
bind=ALT, TAB, workspace, previous
bind=$mainMod, TAB, workspace, e+1
bind=$mainMod SHIFT, TAB, workspace, e-1Hyprland, built from branch  at commit 0ebb43c1a37e7321e5ed7223ea85ed555cc82735  ().
Date: 2024-06-01
Tag: , commits:

flags: (if any)


System Information:
System name: Linux
Node name: JuliansFramework
Release: 6.9.2
Version: #1-NixOS SMP PREEMPT_DYNAMIC Sat May 25 14:30:56 UTC 2024


GPU information:
06:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 22 [Radeon RX 6700/6700 XT/6750 XT / 6800M/6850M XT] [1002:73df] (rev c5) (prog-if 00 [VGA controller])


os-release: ANSI_COLOR="1;34"
BUG_REPORT_URL="https://github.com/NixOS/nixpkgs/issues"
BUILD_ID="24.11.20240529.ad57eef"
DOCUMENTATION_URL="https://nixos.org/learn.html"
HOME_URL="https://nixos.org/"
ID=nixos
IMAGE_ID=""
IMAGE_VERSION=""
LOGO="nix-snowflake"
NAME=NixOS
PRETTY_NAME="NixOS 24.11 (Vicuña)"
SUPPORT_URL="https://nixos.org/community.html"
VERSION="24.11 (Vicuña)"
VERSION_CODENAME="vicuña"
VERSION_ID="24.11"


plugins:


bind=$mainMod, mouse_down, workspace, e+1
bind=$mainMod, mouse_up, workspace, e-1
bind=$mainMod SHIFT, left, movewindow, l
bind=$mainMod SHIFT, right, movewindow, r
bind=$mainMod SHIFT, up, movewindow, u
bind=$mainMod SHIFT, down, movewindow, d
bind=$mainMod SHIFT, H, movewindow, l
bind=$mainMod SHIFT, L, movewindow, r
bind=$mainMod SHIFT, K, movewindow, u
bind=$mainMod SHIFT, J, movewindow, d
bind=$mainMod ALT, left, movecurrentworkspacetomonitor, l
bind=$mainMod ALT, right, movecurrentworkspacetomonitor, r
bind=$mainMod ALT, H, movecurrentworkspacetomonitor, l
bind=$mainMod ALT, L, movecurrentworkspacetomonitor, r
bind=, Print, exec, grimblast --notify copy active 
bind=$mainMod, Print, exec, grimblast --notify copysave active "$screenshotDir/$(date +"%Y%m%d_%T")-Screenshot-active.png"
bind=, Scroll_Lock, exec, grimblast --notify --freeze copy area
bind=, XF86AudioMedia, exec, grimblast --notify --freeze copy area
bind=$mainMod, Scroll_Lock, exec, grimblast --notify --freeze copysave area "$screenshotDir/$(date +"%Y%m%d_%T")-Screenshot-area.png"
bind=$mainMod, XF86AudioMedia, exec, grimblast --notify --freeze copysave area "$screenshotDir/$(date +"%Y%m%d_%T")-Screenshot-area.png"
bind=ALT, Print, exec, hyprpicker -a -r
bind=$mainMod, X, exec, hyprctl kill
bind=$mainMod, Y, exec, swaylock -f -c 000000 -i $lock_bg
bind=SUPER, P, exec, rofi -show output -modes "output:~/.systemScripts/hyprland_output_options.py"
bind=$mainMod, 1, workspace, 1
bind=$mainMod SHIFT, 1, movetoworkspacesilent, 1
bind=$mainMod, 2, workspace, 2
bind=$mainMod SHIFT, 2, movetoworkspacesilent, 2
bind=$mainMod, 3, workspace, 3
bind=$mainMod SHIFT, 3, movetoworkspacesilent, 3
bind=$mainMod, 4, workspace, 4
bind=$mainMod SHIFT, 4, movetoworkspacesilent, 4
bind=$mainMod, 5, workspace, 5
bind=$mainMod SHIFT, 5, movetoworkspacesilent, 5
bind=$mainMod, 6, workspace, 6
bind=$mainMod SHIFT, 6, movetoworkspacesilent, 6
bind=$mainMod, 7, workspace, 7
bind=$mainMod SHIFT, 7, movetoworkspacesilent, 7
bind=$mainMod, 8, workspace, 8
bind=$mainMod SHIFT, 8, movetoworkspacesilent, 8
bind=$mainMod, 9, workspace, 9
bind=$mainMod SHIFT, 9, movetoworkspacesilent, 9
bind=$mainMod, 0, workspace, 10
bind=$mainMod SHIFT, 0, movetoworkspacesilent, 10
bindl=, Pause, exec, pactl set-source-mute @DEFAULT_SOURCE@ toggle
bindl=, XF86AudioMute, exec, pactl set-sink-mute @DEFAULT_SINK@ toggle
bindl=, XF86AudioMicMute, exec, pactl set-source-mute @DEFAULT_SOURCE@ toggle
bindl=, switch:Lid Switch, exec, /home/julian/.systemScripts/clamshell_mode_hypr.sh $lock_bg
bindl=, XF86AudioPlay, exec, playerctl play-pause
bindl=, XF86AudioNext, exec, playerctl next
bindl=, XF86AudioPrev, exec, playerctl previous
bindl=, XF86PowerOff, exec, /home/julian/.systemScripts/lockAndSuspend.sh $lock_bg 1
bindle=, XF86AudioRaiseVolume, exec, pactl set-sink-volume @DEFAULT_SINK@ +5%
bindle=, XF86AudioLowerVolume, exec, pactl set-sink-volume @DEFAULT_SINK@ -5%
bindle=, XF86MonBrightnessDown, exec, brightnessctl set 5%-
bindle=, XF86MonBrightnessUp, exec, brightnessctl set 5%+
bindm=$mainMod, mouse:272, movewindow
bindm=$mainMod, mouse:273, resizewindow
env=XDG_CURRENT_DESKTOP,Hyprland
env=XDG_SESSION_DESKTOP,Hyprland
env=XDG_SESSION_TYPE,wayland
env=QT_QPA_PLATFORM,wayland;xcb
env=QT_AUTO_SCREEN_SCALE_FACTOR,1
env=QT_WAYLAND_DISABLE_WINDOWDECORATION,1
env=GDK_BACKEND,wayland,x11
env=CLUTTER_BACKEND,wayland
env=_JAVA_AWT_WM_NONREPARENTING,1
env=NIXOS_OZONE_WL,1
exec-once=wl-paste --type text --watch cliphist store #clipboard manager: Stores only text data
exec-once=wl-paste --type image --watch cliphist store #clipboard manager: Stores only image data
exec-once=wl-paste -t text -w xclip -selection clipboard
exec-once=/nix/store/g6pnikxf1jjax1f1j1lf4sfdd74dmjkv-polkit-kde-agent-1-5.27.11/libexec/polkit-kde-authentication-agent-1
exec-once=[workspace 1 silent] kwalletd6
exec-once=[workspace 10 silent] thunderbird
exec-once=[workspace 1 silent] sleep 1 && keepassxc
exec-once=[silent] sleep 2 && element-desktop --hidden
exec-once=[silent] sleep 2 && slack -s -u
exec-once=[silent] sleep 2 && env LANGUAGE='en-US:de-DE' signal-desktop --no-sandbox --start-in-tray
exec-once=[silent] sleep 2 && nextcloud
exec-once=[silent] sleep 2 && webcord -m
exec-once=[silent] xwaylandvideobridge
monitor=eDP-1, 2256x1504, 0x0, 1.566667
monitor=desc:Samsung Electric Company C27HG7x HTHK300334, 2560x1440@144, 1440x0, 1
monitor=HDMI-A-1, 1920x1080@60, 4000x0, 1
monitor=,preferred,auto,auto
windowrulev2=opacity 0.0 override 0.0 override,class:^(xwaylandvideobridge)$
windowrulev2=noanim,class:^(xwaylandvideobridge)$
windowrulev2=nofocus,class:^(xwaylandvideobridge)$
windowrulev2=noinitialfocus,class:^(xwaylandvideobridge)$
submap = inhibitSuspend
bindl = , switch:Lid Switch, exec, /home/julian/.systemScripts/clamshell_mode_hypr.sh $lock_bg inhibitSuspend
bindle = , XF86AudioRaiseVolume, exec, pactl set-sink-volume @DEFAULT_SINK@ +5%
bindle = , XF86AudioLowerVolume, exec, pactl set-sink-volume @DEFAULT_SINK@ -5%
bindl = , XF86AudioMute, exec, pactl set-sink-mute @DEFAULT_SINK@ toggle
bindl = , XF86AudioMicMute, exec, pactl set-source-mute @DEFAULT_SOURCE@ toggle
bindle = , XF86MonBrightnessDown, exec, brightnessctl set 5%-
bindle = , XF86MonBrightnessUp, exec, brightnessctl set 5%+
bindl = , XF86AudioPlay, exec, playerctl play-pause
bindl = , XF86AudioNext, exec, playerctl next
bindl = , XF86AudioPrev, exec, playerctl previous
bindl = , XF86PowerOff, exec, /home/julian/.systemScripts/lockAndSuspend.sh $lock_bg 1 inhibitSuspend
bind = ,escape,submap,reset
submap = reset

======Config-End========

Also happens when I bind the tablet to a different monitor, like desc:Samsung Electric Company C27HG7x HTHK300334, so scaling is not the problem.

Bug or Regression?

Regression

Description

After using the tablet and then switching back to the mouse/trackpad (just moving the mouse is enough) will crash some applications, like Xournal++ or Firefox. My tablet is configured using hyprlands inputs:tablet

The only workaround that I have found is to move the cursor out of the application using your tablet (e.g. to a second monitor, above waybar or above another application like Alacritty) before switching back to the mouse. This is obviously very annoying and I always forget to do that. Just accidentally touching the mouse while using Xournal++ will result in an immediate crash which potentially leads to loosing some of my progress.

How to reproduce

Open Xournal++ or Firefox
Draw around with your tablet (moving the cursor is not enough, you need to actually draw something/click on something)
Then move the cursor using your regular mouse or trackpad
Application crashes immediately

Crash reports, logs, images, videos

I did a git bisect and nailed it down to (surprise!) the cursor/tablet rewrite: #5902. The commit e4e84064f2d07810e0c150bce1369a0a00503e9a doesn't have the issue yet, but 84e8d1810d57b65a0bc3b5ac2998bc023df880f4 has it. I also built the debug build of the current commit 0ebb43c1a37e7321e5ed7223ea85ed555cc82735 with debug:disable_logs = false to get the following log of the crash happening in Xournal++: hyprlandd.log

Also here is a video of the crash happening in Xournal++ and Firefox. The sudden cursor movement after using the tablet is me using my mouse, which immediately results in a crash:

https://github.com/hyprwm/Hyprland/assets/70963316/e42a16b0-4d90-4b6b-8dd5-a34a829658fd

EDIT: Xournal++ and Firefox are both Wayland applications, they do NOT use xwayland on my system

Jun 02 '24 16:06 JulianFP

can you post WAYLAND_DEBUG=1 logs from a crashing app?

Jun 02 '24 20:06 vaxerski

can you post WAYLAND_DEBUG=1 logs from a crashing app?

Of course, here you are:

For Xournal++: waylandDebug_xournalpp.log For Firefox: waylandDebug_firefox.log

Also here is the errorlog of Xournal++ just in case: errorlog.20240602-233629.log

Jun 02 '24 21:06 JulianFP

hm, this is odd. Doesn't look like a hyprland bug to me that much? Can you get a debug stacktrace from xournalpp? (compile it manually in debug and get bt -full just like you would for hyprland)

you might need to compile libgdk3 in debug too.

If you don't want to do that, can you also get a WAYLAND_DEBUG=1 trace of doing the same on sway?

Jun 08 '24 08:06 vaxerski

Can you get a debug stacktrace from xournalpp? (compile it manually in debug and get bt -full just like you would for hyprland)

you might need to compile libgdk3 in debug too.

I didn't really feel like building gtk manually, so I tried my best doing this with nix (this is a .txt because github). Idk if it worked however since the stacktrace has some variables optimized out which from what I know shouldn't happen if you build with cmake using the -DCMAKE_BUILD_TYPE=Debug flag. It definitely has more information than a stacktrace from a non-debug build though, so maybe it still helps: backtrace.txt. If this is not enough then just say so, I will then try to build it "normally" when I have some time.

can you also get a WAYLAND_DEBUG=1 trace of doing the same on sway?

I also did this, and as expected Xournal++ didn't crash (I just interrupted it with Ctrl+Z after making sure that it wouldn't crash). Here the output: waylandDebug.log

Jun 08 '24 20:06 JulianFP

Honestly, no clue. Looks like the wl_proxy got nuked. does running hyprland with make asan reveal anything? https://wiki.hyprland.org/Crashes-and-Bugs/#building-the-wayland-stack-with-asan

Jun 09 '24 11:06 vaxerski

does running hyprland with make asan reveal anything?

Yes, I got this: asan.log

Jun 10 '24 19:06 JulianFP

hm, looks like that happened on exit of hyprland, though, so it's likely not very related...

Jun 10 '24 20:06 vaxerski

I'm experiencing the exact same problem, I tested in gnome and sway and couldn't reproduce this bug so I don't know what could be at play here.

Jun 10 '24 23:06 0bCdian

If hyprland doesn't commit any fault, can you try running an offending app with ASan?

Jun 11 '24 15:06 vaxerski

hm, looks like that happened on exit of hyprland, though, so it's likely not very related...

I see now that I get the same asan log regardless of if I caused the bug or not, so yeah you are right, sorry

If hyprland doesn't commit any fault, can you try running an offending app with ASan?

I just built Xournal++ with asan, and I got this: xournalpp_asan.txt. However this is likely not related either since I get the same asan log regardless of if the application crashed or not (with the same amount of bytes leaked). I tried building gtk with asan as well but failed. Using the -Db_sanitize=address meson flag resulted in an error: ASan runtime does not come first in initial library list. I never used meson before (gtk only supports meson) and I probably did something wrong here.

TLDR: Nothing, no result

Jun 11 '24 21:06 JulianFP

I'm experiencing the exact same problem, I tested in gnome and sway and couldn't reproduce this bug so I don't know what could be at play here.

@vaxerski I'm experiencing the same issue. It's also not only xournal++ or firefox, as rnote and inkscape all exhibit the same behavior. The crashes only happen when the tablet is connected.

Also the crash happens when you open another window aside rnote/xournal/firefox in the same workspace.

This didn't happen for hyprland 0.40 and i just got the same issue for hyprland 0.41. I can send error logs but I don't know which ones since this happens in many applications. Maybe I'll send a video first

https://github.com/hyprwm/Hyprland/assets/81712003/8cc0c760-8784-4404-a672-ef0bb1c7a8be

Jun 13 '24 00:06 jfab20

I realize but this is some weird interaction between gtk and hyprland I presume, as qt apps do not crash from what I understand?

I'd normally say to report this to gtk but knowing their attitude to "non-gnome software" I wouldn't expect much.

Jun 13 '24 09:06 vaxerski

Same problem here, but this can't reproduce on KDE, so Hyprland tablet impl bug?

Jun 13 '24 11:06 awerty-noob

I realize but this is some weird interaction between gtk and hyprland I presume, as qt apps do not crash from what I understand?

I'd normally say to report this to gtk but knowing their attitude to "non-gnome software" I wouldn't expect much.

But how can it be a gtk bug if everything is fine on hyprland 0.40? And if the behavior is not present on other WM/DE's? :(

Jun 13 '24 13:06 jfab20

That's not what I said:

some weird interaction between gtk and hyprland

Jun 13 '24 13:06 vaxerski

Little more digging: when opentabletdriver was turned to Absolute Mode, Xournal++ won't crash when switching from tablet back to mouse, but Artist Mode would.

Jun 15 '24 11:06 awerty-noob

might be a bug in the driver (I've had a poor experience with OTD, also look at their GitHub issues concerning Wayland)

Jun 15 '24 13:06 Agent00Ming

It's a bug with Artist mode specifically, as even with OTD disabled, the problem still exists.

Jun 15 '24 14:06 fufexan

nah, doesn't happen to me at all. Might've happened once or twice with OTD but otherwise I can't repro this bug

Jun 15 '24 14:06 Agent00Ming

also, absolute mode and artist mode distinction only exists when using OTD because they use a virtual mouse/tablet to relay your inputs

Jun 15 '24 14:06 Agent00Ming

What rev are you running? I'm on f687105eff61aebff34669852e7153584286a357. If it matters, my tablet is a Wacom CTL-472.

Jun 15 '24 14:06 fufexan

2f278dc883f3e4e84fb1d18154132f8f4efe42cf and CTL-6100

Jun 15 '24 14:06 Agent00Ming

might be a bug in the driver (I've had a poor experience with OTD, also look at their GitHub issues concerning Wayland)

Can't be. With exact same environment except Hyprland downgrade to cba1ade848feac44b2eda677503900639581c3f4 (0.40.0), the bug doesn't show up.

@JulianFP from beginning Says:

I did a git bisect and nailed it down to (surprise!) the cursor/tablet rewrite

So I'm pretty sure bug is in cursor/tablet rewrite

Jun 15 '24 14:06 awerty-noob

Yeah, I am aware. We talked extensively about it on discord and concluded to opening this issue because I can't repro it with the same conditions with my tablet. I just want everyone to be on the same page and not add additional variables like OTD into the mix. So please provide your tablet model number so I can maybe think of why this happens on some tablets but not others.

Jun 15 '24 14:06 Agent00Ming

Ok. Tablet: Gaomon 1060Pro

Jun 15 '24 14:06 awerty-noob

and does it happen when you use the digimend drivers instead of OTD?

Jun 15 '24 14:06 Agent00Ming

Tried, still crash.

Jun 15 '24 15:06 awerty-noob

might be a bug in the driver (I've had a poor experience with OTD, also look at their GitHub issues concerning Wayland)

Can't be. With exact same environment except Hyprland downgrade to cba1ade (0.40.0), the bug doesn't show up.

@JulianFP from beginning Says:

I did a git bisect and nailed it down to (surprise!) the cursor/tablet rewrite

So I'm pretty sure bug is in cursor/tablet rewrite

Me, too. Only difference is i am using a surface pro 8.

Jun 18 '24 09:06 lVentus

So please provide your tablet model number so I can maybe think of why this happens on some tablets but not others.

Happens to me as well on a Dell Inspiron 7506 2n1

Jun 18 '24 21:06 leon-erd

I've been seeing the same issue with rnote and Hyprland when using https://github.com/Evidlo/remarkable_mouse to use my Remarkable 2 as a drawing tablet. Because that tool internally emulates a real wacom device, i've been able to reuse some of the code to create a somewhat minimal reproducable example that doesn't require a real tablet: https://gist.github.com/mrWinston/b013ce564465ac164a6a1ffc6c1536c2

Here's a screengrab of it happening: hyprland_tablet_rnote_kill.webm

Jun 24 '24 14:06 mrWinston