[v2] Debugging issues on Linux stack

Description

I’ve been working with Wails for about 4 years; I’ve never had any problems debugging on Windows (surprisingly), but I’ve never been able to get it to work on Linux. Every now and then I try to revisit the problem, but I always hit a wall. The problem is as follows: when I launch the application through the debugger or attach the application process to the debugger, the application freezes, and after a few seconds, a dialog appears stating that “the application is not responding and asking if I want to stop it or wait” (waiting, of course, doesn’t change anything). The application starts working properly again once I detach the debugger.

To Reproduce

1. wails init -n debug-test -ide vscode
2. cd debug-test
3. wails dev - verify that the applications works
4. code .
5. Set a breaking and run with debugger - the application freezes

Expected behaviour

The program is not freezeing when a debugger is attached.

Screenshots

Attempted Fixes

I found a thread where someone else had similar issues while debugging other programs in a similar desktop stack. It was suggested to change the time after which Mutter should mark the application as unresponsive. The dialog stopped appearing, but the application still froze.
" is not responding" while debugging in gnome 3 ubuntu 17.10
How To Disable the "Window not responding" Dialog

I also found a thread where the symptoms and environment were exactly the same as mine. I don’t quite understand how to apply the suggestions from the replies in that thread, but upgrading Wails to the version that included the mentioned fixes didn’t change anything.
https://github.com/wailsapp/wails/issues/4398

Exactly the same issue was reported on the Discord server (quote from Nilpointers's post), but the thread remained unanswered.

Hi,
I just started my journey into wails and want to use my daily tool chain doing so. Which is linux/macos and goland.

Initializing the project with -ide flag works fine, run/debug configurations are shown.

Problem is - running in debug works but if i set a break-point in go code, the execution of the program halts but the breakpoint is not hit. moments later linux asks me if it should quit the not responding program.

Am I missing some dependency here?

System Details

# Wails
Version         | v2.12.0
Package Manager | dnf    


# System
┌───────────────────────────────────────────────────────────────────────────────────────────────┐
| OS           | Fedora Linux                                                                   |
| Version      | 43                                                                             |
| ID           | fedora                                                                         |
| Branding     |                                                                                |
| Go Version   | go1.25.10 X:nodwarf5                                                           |
| Platform     | linux                                                                          |
| Architecture | amd64                                                                          |
| CPU          | AMD Ryzen 7 8845HS w/ Radeon 780M Graphics                                     |
| GPU 1        | AD106M [GeForce RTX 4070 Max-Q / Mobile] (NVIDIA Corporation) - Driver: nvidia |
| GPU 2        | HawkPoint1 (Advanced Micro Devices, Inc. [AMD/ATI]) - Driver: amdgpu           |
| Memory       | 31GB                                                                           |
└───────────────────────────────────────────────────────────────────────────────────────────────┘

# Dependencies
┌────────────────────────────────────────────────────────┐
| Dependency | Package Name        | Status    | Version |
| *docker    | moby-engine         | Installed | 29.6.0  |
| gcc        | gcc-c++             | Installed | 15.2.1  |
| libgtk-3   | gtk3-devel          | Installed | 3.24.52 |
| libwebkit  | webkit2gtk4.0-devel | Installed | 2.47.2  |
| npm        | nodejs-npm          | Installed | 10.9.7  |
| pkg-config | pkgconf-pkg-config  | Installed | 2.3.0   |
| *upx       | upx                 | Installed | 5.1.1   |
|                                                        |
└─────────────── * - Optional Dependency ────────────────┘

# Diagnosis
 SUCCESS  Your system is ready for Wails development!

Additional context

A few notes regarding the environment:

• Tested on every version of Fedora from 36 to 43
• Tested on every version of Wails from v2.4.1 to v2.12.0
• The problem occurs on X11, Wayland, and XWayland
• Tested on the GNOME desktop environment (the version that came by default with the Fedora version used)