[Bug] Stops writing after a few lines are drawn

[lucasphys]

Describe the bug

I am using Wacom CTL-472 on Fedora Workstation 40. I have installed OpenBoard from flathub through the GNOME Software. After some time writing on OpenBoard, the lines are not drawn anymore.

To Reproduce (edited)

1. Draw one line
2. Move away the stylus (for the sake of clarity: 50 cm away from the tablet or more)
3. Try to draw another line

Expected behavior

To continue drawing.

Actual behavior

Drawing ceases.

Screenshots

Additional resources

Context

• reproducibility : not systematic
• OpenBoard version :
  • bug happens with : 1.7.1
  • bug doesn't happen with : I don't know.
  • didn't check : Any other version.
• OS :
  • bug happens with : Linux
    • Desktop environment: GNOME (over Wayland)
    • bug doesn't happen with : Anything running over X Window System 11 instead of Wayland
  • bug doesn't happen with : I don't know.
  • didn't check : Windows macOS
• Installation source : flatpak
• If you built OpenBoard from source, please provide the branch you're working on : Not built from source.

Additional context (edited)

• OS(es) detailed version (for the ones you reproduced the bug on)
  • Linux : Fedora Linux 40 (Workstation Edition)
• number of monitors : 1
• resolution of the monitor: 1920x1080
• if used, manufacturer and model of graphic tablet input device : Wacom CTL-472

[letsfindaway]

I never experienced such an issue. However I use an installed package, not Flatpak. @jbruechert: Have you seen something like this for the Flatpak build anywhere?

[jbruechert]

I couldn't reproduce it so far, bit maybe I haven't tried long enough. I'm also using Plasma, which might make a difference.

[lucasphys]

I have found a way to consistently reproduce the bug:

1. Draw one line
2. Move away the stylus (for the sake of clarity: 50 cm away from the tablet or more)
3. Try to draw another line (it will fail)

[jbruechert]

works fine here (Plasma 5.27.11, Wayland, OpenBoard flatpak)

[lucasphys]

I have tested over GNOME on X and it works, this bug only happens when GNOME (this includes the "classic" GNOME) is running over Wayland, as it happens with a stock Fedora Linux Workstation 40 install. It remains a mistery to me why this bug does not happen on Plasma. Workaround: run GNOME over X.

[jbruechert]

Maybe just some implementation difference in GNOME's wayland compositor.