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Sorry for my bad English My problem is screen tearing in Lubuntu 16.04, my GPU is Intel HD graphic I install compton and this command help me $ compton -b --vsync opengl But I want to auto start compton so I search the Internet for this. I edit the file /etc/xdg/lxsession/Lubuntu/autostart by adding this line @compton -b --vsync opengl But it do not work, can anyone help me?

$ which compton
/usr/bin/compton

$ sudo systemctl status mycompton.service
● mycompton.service - compton autostart script
   Loaded: loaded (/etc/systemd/system/mycompton.service; enabled; vendor preset: enabled)
   Active: inactive (dead) (Result: exit-code) since T5 2017-09-07 15:59:44 ICT; 5s ago
  Process: 6342 ExecStart=/usr/bin/compton -b --vsync opengl (code=exited, status=1/FAILURE)

Th09 07 15:59:44 GaCon systemd[1]: Failed to start compton autostart script.
Th09 07 15:59:44 GaCon systemd[1]: mycompton.service: Unit entered failed state.
Th09 07 15:59:44 GaCon systemd[1]: mycompton.service: Failed with result 'exit-code'.
Th09 07 15:59:44 GaCon systemd[1]: mycompton.service: Service hold-off time over, scheduling restart.
Th09 07 15:59:44 GaCon systemd[1]: Stopped compton autostart script.
Th09 07 15:59:44 GaCon systemd[1]: mycompton.service: Start request repeated too quickly.
Th09 07 15:59:44 GaCon systemd[1]: Failed to start compton autostart script.

$ journalctl -xe
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mycompton.service has finished shutting down.
Th09 07 15:59:44 GaCon systemd[1]: Starting compton autostart script...
-- Subject: Unit mycompton.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mycompton.service has begun starting up.
Th09 07 15:59:44 GaCon compton[6342]: session_init(): Can't open display.
Th09 07 15:59:44 GaCon systemd[1]: mycompton.service: Control process exited, code=exited status=1
Th09 07 15:59:44 GaCon systemd[1]: Failed to start compton autostart script.
-- Subject: Unit mycompton.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mycompton.service has failed.
-- 
-- The result is failed.
Th09 07 15:59:44 GaCon systemd[1]: mycompton.service: Unit entered failed state.
Th09 07 15:59:44 GaCon systemd[1]: mycompton.service: Failed with result 'exit-code'.
Th09 07 15:59:44 GaCon systemd[1]: mycompton.service: Service hold-off time over, scheduling restart.
Th09 07 15:59:44 GaCon systemd[1]: Stopped compton autostart script.
-- Subject: Unit mycompton.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mycompton.service has finished shutting down.
Th09 07 15:59:44 GaCon systemd[1]: mycompton.service: Start request repeated too quickly.
Th09 07 15:59:44 GaCon systemd[1]: Failed to start compton autostart script.
-- Subject: Unit mycompton.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mycompton.service has failed.
-- 
-- The result is failed.
Th09 07 15:59:50 GaCon sudo[6344]:      lhv : TTY=pts/0 ; PWD=/home/lhv ; USER=root ; COMMAND=/bin/systemctl status mycompton.service
Th09 07 15:59:50 GaCon sudo[6344]: pam_unix(sudo:session): session opened for user root by (uid=0)
Th09 07 15:59:50 GaCon sudo[6344]: pam_unix(sudo:session): session closed for user root
Th09 07 16:00:14 GaCon com.canonical.indicator.application[974]: (process:1199): indicator-application-service-WARNING **: Application already exists, re-requesting pro
lines 2628-2669/2669 (END)
Việt Lê Huy
  • 11

1 Answers1

1

You can use a simple systemd service to autostart it:

  1. Create a service file:

    sudo nano /etc/systemd/system/mycompton.service

  2. Add the following configurations:

    [Unit]
Description=compton autostart script
After=network.target

[Service]
Type=forking
ExecStart=/usr/bin/compton -b --vsync opengl
Restart=always

[Install]
WantedBy=multi-user.target

  3. Start and enable the compton service:

    sudo systemctl start mycompton
sudo systemctl enable mycompton

  4. Check the status: 

    systemctl status mycompton

  5. Stop it with:

    sudo systemctl stop mycompton

Note:

Replace the line /usr/bin/coompton with the result of which compton, if different from my own entry.

George Udosen
  • 37,534