cannot connect to X server :0

Anas_Deshmukh

Hi all,

i am using qt 4.8 for my toradex board.
issue is LCD screen gui wont work if i terminate QT demo during autorun.

systemctl start qt4-x11-demo.service

systemctl stop qt4-x11-demo.service

my application works fine when i keep running QT demo in background.

getting below error when i stop service

cannot connect to X server :0

SGaist

Hi,

Just a wild guess: your X server goes down when you stop the demo ?