Please try adding backtrace information for the developers, like your /var/log/Xorg.0.log.old after the logout happens in order to pinpoint the problem and find a reliable method to reproduce it. https://wiki.ubuntu.com/X/Backtracing
Please try adding backtrace information for the developers, like your /var/log/ Xorg.0. log.old after the logout happens in order to pinpoint the problem and find a reliable method to reproduce it. /wiki.ubuntu. com/X/Backtraci ng
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