Cron doesn't execute one of the scheduled jobs

Posted by user288633 on Ask Ubuntu See other posts from Ask Ubuntu or by user288633
Published on 2014-06-05T08:06:28Z Indexed on 2014/06/10 15:41 UTC
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Filed under:

command-line

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bash

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cron

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log

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touchscreen

I'm using a lubuntu desktop, distribution Ubuntu 13.10, i686. This is my problem: in the job list scheduled by cron a job hasn't effect, but in /var/log/syslog its execution is traced. This is the relative log line:

Jun 4 09:06:01 kiosk CRON[14189]: (root) CMD (/usr/bin/xinput set-prop 12 --type=float "Coordinate Transformation Matrix" 0 -1 1 1 0 0 0 0 1 >> /tmp/mybackup.log)

This job should rotate touchscreen mapping.

I try different solutions: I substitute in crontab the with bash -c "", I set "export DISPLAY=:0.0" ("for Graphics related job in Unix Environment we need to set first the DISPLAY...") before the command,...and many other!

I know there are a lots of details affect cron execution (path, environment variables, special character and other) and I have no more idea by now :(

Could some gentleman suggest me an idea? where can I find the problem? Thanks in advance!

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