topic Display issue while using QTcreator5.0.1 in i.MX Processors

Display issue while using QTcreator5.0.1

abhijeet_ghodga — Wed, 11 Sep 2019 12:48:50 GMT

Problem statement: On our custom board I.MX6q based, we have ported qt5. Developed simple Hello world application and ported on hardware using QTcreator5.0.1. The application successfully copied into the home/root Path. Got following error

Resize: can't open terminal /dev/tty
QXcbConnection: Could not connect to display :0.0
sh: line 1: 445 Aborted DISPLAY=:0.0 /home/root/Final_2
Remote application finished with exit code 134.

After some search, through command line specified export DISPLAY=:0.0, Doesn’t work.

Following is local.config. what is missing?

MACHINE ??= 'imx6qonlinepdd'

DISTRO ?= 'poky'

DISTRO_FEATURES_BACKFILL_CONSIDERED = "bluez5"

DISTRO_FEATURES_append = "x11"

PACKAGE_CLASSES ?= "package_rpm"

EXTRA_IMAGE_FEATURES = "debug-tweaks dev-pkgs ssh-server-openssh"

USER_CLASSES ?= "buildstats image-mklibs"

PATCHRESOLVE = "noop"

BB_DISKMON_DIRS = "\

STOPTASKS,${TMPDIR},1G,100K \

STOPTASKS,${DL_DIR},1G,100K \

STOPTASKS,${SSTATE_DIR},1G,100K \

STOPTASKS,/tmp,100M,100K \

ABORT,${TMPDIR},100M,1K \

ABORT,${DL_DIR},100M,1K \

ABORT,${SSTATE_DIR},100M,1K \

ABORT,/tmp,10M,1K"

PACKAGECONFIG_append_pn-qemu-native = " sdl"

PACKAGECONFIG_append_pn-nativesdk-qemu = " sdl"

PACKAGECONFIG_append_pn-gstreamer1.0-plugins-bad = " opencv"

CONF_VERSION = "1"

DL_DIR ?= "${BSPDIR}/downloads/"

ACCEPT_FSL_EULA = "1"

IMAGE_INSTALL_append += " util-linux imx-vpu"

IMAGE_INSTALL_append += " kernel-modules"

IMAGE_INSTALL_append += " gstreamer1.0-plugins-bad-opencv"

IMAGE_INSTALL_append += " opencv opencv-samples libgomp"

CORE_IMAGE_EXTRA_INSTALL += " libopencv-core-dev libopencv-highgui-dev libopencv-imgproc-dev libopencv-objdetect-dev libopencv-ml-dev"

IMAGE_INSTALL_append = " \

coreutils \

linux-firmware \

qtbase \

qtbase-fonts \

qtbase-plugins \

cinematicexperience \

openssh-sftp-server \

xterm \

mtd-utils \

How to resolve this error?

bhupeshpatil‌

Re: Display issue while using QTcreator5.0.1

karangajjar — Fri, 13 Sep 2019 04:04:15 GMT

Hi Abhijeet Gokar ,

Can you let us know which yocto images you have used? Try building fsl-image-qt5-validation-imx image and check if sample QT application is working.

Regards,

Karan Gajjar

Re: Display issue while using QTcreator5.0.1

abhijeet_ghodga — Fri, 13 Sep 2019 05:16:19 GMT

I have built two things till now: the image (with all it patch files included in another layer in sources), and I have built a SDK meta-toolchain-qt5.

Should I try to built fsl-image-qt5-validation-imx directly, or do I need to do any prior settings?

Re: Display issue while using QTcreator5.0.1

karangajjar — Mon, 16 Sep 2019 03:56:22 GMT

Hi Abhijeet Gokar,

Yes, please try and build fsl-image-qt5-validation-imx directly and test.

You can find the documents related to imx6q below. For building image please follow yocto user guide and for setting HDMI or LVDS display please checkout linux user guide.

https://www.nxp.com/webapp/Download?colCode=L4.1.15_2.0.0-LINUX-DOCS

Regards,

Karan Gajjar