QInputMethod does not work properly on Linux.

qt_user_342

Hi,
I have a problem with the QInputMethod::localeChanged signal and the QInputMethod::locale() method on Linux.
The QInputMethod::locale() always gives me the same result (looks like it just gives me a system locale) QLocale(English, Latin, UnitedStates).
And the QInputMethod::localeChanged signal just never calls me my slot.

QObject::connect(
        QGuiApplication::inputMethod(),
        &QInputMethod::localeChanged,
        [] {
            qDebug() << "localeChanged " << QGuiApplication::inputMethod()->locale();
        });

This sample code works perfectly on Windows and macOS and does not on Linux.
Is there any a workaround solution?

Thanks.

SGaist

Hi and welcome to devnet,

Does not work on Linux is way too short.

What Linux distribution ?
What desktop environment ?
What graphical server ?
What version of Qt ?
Is it the distribution provided Qt ?

qt_user_342

Sorry for the missing details.

What Linux distribution ?

I tried on Ubuntu 14.04, Ubuntu 18.04, Linux Mint 17.3.

What desktop environment ?

Ubuntu — Unity. Mint — Mate.

What graphical server ?

X11.

What version of Qt ?

I tried 5.9, 5.12 and 5.14.

Is it the distribution provided Qt ?

5.9 was taken via apt install.
5.12 was compiled from sources.
5.14 was taken via an installer from qt.io.

SGaist

How are you triggering the locale change in Windows ?

qt_user_342

@SGaist
It makes no difference how I do it: Win+Space, Alt+Shift (on Win 7) or by mouse via Input Indicator.