--- qsampler/trunk/src/qsampler.cpp 2021/05/30 14:56:01 3910 +++ qsampler/trunk/src/qsampler.cpp 2021/05/30 15:18:46 3911 @@ -487,7 +487,9 @@ ::signal(SIGBUS, stacktrace); #endif #endif +#if defined(Q_OS_LINUX) ::setenv("QT_QPA_PLATFORM", "xcb", 0); +#endif #if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0) #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);