I have installed the Ubuntu extension for Windows, but I run into troubles when I want to use gnuplot... I am just trying to plot a simple data file, but I get the following error :

QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-julien_barbaud'
qt.qpa.screen: QXcbConnection: Could not connect to display
Could not connect to any X display.
Could not connect to existing gnuplot_qt. Starting a new one.
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to
'/tmp/runtime-julien_barbaud'
qt.qpa.screen: QXcbConnection: Could not connect to display
Could not connect to any X display.

As you may guess, I am not veryfamiliar with this problem. Is there Something I should set up in my environment to fix this ?

EDIT: after the suggestion in comments, I tried to use set term postscript. The output is different, but still no plot...

And after trying set term png, the plot command gives me this:

4

2 Answers

I could solve my problem by downloading Xming on my Windows system, so that linux can access X11 The qt terminal works well in this condition.

Thanks for the help !

2

Add

libmali-xlnx
libmali-xlnx-dev
packagegroup-petalinux-x11-dev

in rootfs configure.
Then execute

killall Xorg 

(no need when running Xorg for the first time).
Finally run

export DISPLAY=:0.0
/usr/bin/Xorg -depth 16&

and then run the qt project.