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BoboTiG / python-mss

An ultra fast cross-platform multiple screenshots module in pure Python using ctypes.
https://pypi.org/project/mss/
MIT License
987 stars 88 forks source link

$DISPLAY not set. #263

Closed rominail closed 11 months ago

rominail commented 11 months ago

General information:

For GNU/Linux users:

Through the usage of pombo, when using it from CLI there is no problem, when executed from the cronjob I get the message "$DISPLAY not set." I don't know if I should change any conf for the crontask or if it's something with the library as it use to work (but I don't know when it stopped)

BoboTiG commented 11 months ago

When you execute anything from a cronjob, you have to define DISPLAY yourself.

  1. Get the current value in a terminal: 
    $ echo $DISPLAY
:0
  2. In your cronjob: 
    * * * * * DISPLAY=:0 COMMAND

    Adapt the frequency, what is important is to prefix the command with DISPLAY=:0.

rominail commented 11 months ago

Thank you!

rominail commented 11 months ago

For information for other person who might experience the same issue (and might be nice to put it in the linux doc) I also added XAUTHORITY=/run/user/1000/gdm/Xauthority in my root crontab

WanMMao commented 11 months ago
image

May I ask if using crontab still results in $DISPLAY not set? Is there something wrong with me？

rominail commented 11 months ago

I don't know if there is something wrong with your code what I did is : 

# m h  dom mon dow   command
DISPLAY=:0
XAUTHORITY=/run/user/1000/gdm/Xauthority
*/15 * * * * /usr/local/bin/pombo 2>/dev/null

Also, if your issue is not related to the repo, open an issue on a dedicated website (eg: stackexchange)