Am 11.11.2022 um 18:01 schrieb Thiago Macieira:
On Thursday, 10 November 2022 23:50:50 PST Dennis Luehring wrote:
> give a wayland plugin not found message and then hangs forever :/
Run with QT_DEBUG_PLUGINS=1 and see why the plugin won't load.
i switched to git/dev - because i will switch to 6.5 in the future when
in comes available and i think its easier to follow your advices
and i also did a clean Ubuntu 22.04 Setup + Qt-Installer install + Qt
git/dev build using these steps
Ubuntu default install on VM
sudo apt install build-essential libasan6 llvm clang libclang-dev
cmake ninja-build git
sudo apt-get build-dep qtbase5-dev
sudo apt install libmd4c-html0-dev
sudo apt install mesa-utils libglu1-mesa-dev freeglut3-dev
mesa-common-dev
sudo apt install libglew-dev libglfw3-dev libglm-dev
sudo apt install libao-dev libmpg123-dev
sudo apt update
sudo apt upgrade
Qt-Installer install (just as a reference to compare to)
download qt-unified-linux-x64-4.5.0-online.run
chmod +x qt-unified-linux-x64-4.5.0-online.run
./qt-unified-linux-x64-4.5.0-online.run
default installs Qt 6.4 in /home/linux/Qt/6.4
build Qt dev
mkdir ~/qt6_dev
cd ~/qt6_dev
git clone git://code.qt.io/qt/qt5.git qt6
cd qt6
git checkout dev
perl init-repository
cd ..
mkdir qt6-build
cd qt6-build
../qt6/qtbase/configure -debug -opensource -nomake examples -nomake
tests -prefix ~/qt6_dev/qt6-install > ../qt6_configure.txt 2>&1
# ==> https://pastebin.com/JDm0p80b qt6_configure.txt
cmake --build . --parallel 4
cmake --install .
then a simple (called qt_tsan_tests_dev but its just a simple main)
QApplication app( argc, argv );
QWidget window;
window.resize( 320, 240 );
window.show();
return app.exec();
the build folder of my example does not contain any platform/plugins
etc. folder
the platform folder of my Qt dev build contains these plugins
linux@linux-virtual-machine:~/qt6_dev/qt6-build/plugins/platforms$ ls
libqeglfs.so libqlinuxfb.so libqminimalegl.so libqminimal.so
libqoffscreen.so libqvkkhrdisplay.so libqvnc.so
the Qt-Installer 6.4 installation contains these plugins
linux@linux-virtual-machine:~/Qt/6.4.0/gcc_64/plugins/platforms$ ls
libqeglfs.so libqwayland-egl.so qoffscreen.debug
libqlinuxfb.so libqwayland-generic.so qvkkhrdisplay.debug
libqminimalegl.so libqxcb.so qvnc.debug
libqminimal.so qeglfs.debug qwayland-egl.debug
libqoffscreen.so qlinuxfb.debug qwayland-generic.debug
libqvkkhrdisplay.so qminimal.debug qxcb.debug
libqvnc.so qminimalegl.debug
both started with QT_DEBUG_PLUGINS=1
the Qt-Installer 6.4 version works out of the box
https://pastebin.com/u0GSqUJR
and the dev build seems to not find the plugins and aborts
https://pastebin.com/RfvsATKz
this is the crash point in QtCreator using my Qt dev build
https://imgur.com/a/PjT8Yqq
setting
QT_QPA_PLATFORM_PLUGIN_PATH=~/qt6_dev/qt6-build/plugins/platforms
./qt_tsan_tests
did not help
and i don't understand why the Qt-Installer version got more platforms
available then my git/dev build?
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