No output in "Application Output" with debugger

jeremiebourque

Hi,

In QtCreator, I get no output in the "Application Output" tab when running the app with the debugger. I do however see it when running without the debugger.

My setup:

Windows 11
Qt Creator 15.0.1
Qt 6.8.1 llvm mingw 64 bit

How to reproduce:

Use the "Document Viewer" example project (I get the problem in any projects)
Add a qDebug in the main.cpp file
Compile the app in debug mode
Run the app without the debugger to confirm that the qDebug does show up in the application output.
Run the app again, but this time with the debugger. The qDebug does not show in the application output.

How can I solve this?

Thank you.

jeremiebourque

Anyone has an idea?

cristian-adam

lldb on Windows has an issue and it doesn't work in the same way in Qt Creator as gdb or cdb.

There is a workaround though.

Make sure to have Run in terminal checked
Set the environment variable QT_WIN_DEBUG_CONSOLE=attach

See the screen cast below:
alt text

cristian-adam

I've opened up https://github.com/mstorsjo/llvm-mingw/issues/479 a bug upstream.

mbruel

same issue with QtCreator 15.0.0 and 17.0.0 on Windows 11 using either KIT 6.4.1 MSVC 2019 64bit or 6.9.1 MSVC 2022 64 bit
quite problematic isn't it?!? how come oO
can't debug properly anymore without @cristian-adam workaround... (on Windows)