The program can run on the imx6 development board, but the GUI is not displayed
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Does anyone know why the cross-compiled qt5.15.4 compiler can run on the imx6 development board, but the GUI is not displayed。
Here are some of my environments：
opensource qt version: 5.15.4.
linux: Linux twdz-imx6q 4.1.15-svn1 #36 SMP PREEMPT Thu Dec 9 10:50:52 CST 2021 armv7l armv7l armv7l GNU/Linux.
compile command: ./configure -prefix /usr/local/qt5.15.4_imx6 -extprefix $HOME/imx6/qt5.15.4_imx6 -device linux-imx6-g++
-device-option CROSS_COMPILE=/opt/fsl-imx-fb/4.1.15-2.0.1/sysroots/i686-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-
-sysroot /opt/fsl-imx-fb/4.1.15-2.0.1/sysroots/cortexa9hf-neon-poky-linux-gnueabi
-nomake examples -nomake tests -skip qtdocMy test program is able to print output, but no GUI.
thanks.