AnsweredAssumed Answered

Failed to create display (No such file or directory)

Question asked by Lei Ma on Jan 25, 2018
Latest reply on Feb 6, 2018 by Joan Xie

OS: fsl-yocto-L4.9.11_1.0.0

Disro: wayland 

Image: fsl-image-validation-qt5-imx

Soc: imx6q

 

When I run the qt example app "texture"(actually any gui program) from the ssh login, there will be an error: Failed to create display (No such file or directory).

I found that weston running on tty7, if I stop weston: systemctrl stop weston, 

and then run the command: weston --tty=[1~7] &, the qt example works fine.

 

So how to configure the init weston run correctly?

 

weston.service:

[Unit]
Description=Weston Wayland Compositor (on tty7)
RequiresMountsFor=/run
Conflicts=getty@tty7.service plymouth-quit.service
After=systemd-user-sessions.service getty@tty7.service plymouth-quit-wait.service

[Service]
User=root
PermissionsStartOnly=true

# Log us in via PAM so we get our XDG & co. environment and
# are treated as logged in so we can use the tty:
PAMName=login

# Grab tty7
UtmpIdentifier=tty7
TTYPath=/dev/tty7
TTYReset=yes
TTYVHangup=yes
TTYVTDisallocate=yes

# stderr to journal so our logging doesn't get thrown into /dev/null
StandardOutput=tty
StandardInput=tty
StandardError=journal

EnvironmentFile=-/etc/default/weston

# Weston does not successfully change VT, nor does systemd place us on
# the VT it just activated for us. Switch manually:
ExecStartPre=/usr/bin/chvt 7
ExecStart=/usr/bin/weston-launch -- --log=/var/log/weston.log $OPTARGS

IgnoreSIGPIPE=no

[Install]
WantedBy=multi-user.target

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