Starting QT app as a Systemd service (another)

Yifan 0

hi guys. i have a problem very samilar to this link text, the difference of which is i use wayland rather than x server. And i alse found another post link text from toradex.

root@apalis-imx8:~# cat /lib/systemd/system/wayland-app-launch.service
[Unit]
Description=Start a wayland application
After=weston@root.service    # ==> weston@.service
Requires=weston@root.service # ==>weston@.service

[Service]
Restart=on-failure
Type=forking
Environment="QT_QPA_PLATFORM=wayland-egl"
ExecStart=/usr/bin/qt-app
RestartSec=1

[Install]
WantedBy=multi-user.target

here is my weston service configure & my service

so i replace it

then i daemon-reload and start 2110.service. something unfortunate happened！Is the dependency wrong?

SGaist

Hi and welcome to devnet,

Might be a silly question but did you check that you have that platform plugin available ?

Yifan 0

@SGaist i don't know which paltform plugin is. but if i run the /home/root/2110_12ECGLead_x8 directly, i worked and show ui normally

Yifan 0

i also found the dependency service of my service, here is the info from journalctl

ChrisW67

@Yifan-0 The last line of your 2110.service file seems to have a typo

Yifan 0

somehow，it works well by adding :

Environment="QT_QPA_PLATFORM=wayland"
Environment="XDG_RUNTIME_DIR=/run/user/0"

Yifan 0

@ChrisW67 it is the terminal outputs overlaping ,the file's text itself not wrong, my fault!!