I include the /var/crash/_usr_lib_x86_64-linux- gnu_libexec_kdeconnectd.1000.crash
After this first reply from Foundation Team Bug Bot, I follow the step described in https://wiki.ubuntu.com/Bugs/FindRightPackage The following description match this bug: "If you have any of the following symptoms, the issue is with X and the package to report against is xorg: (See X/Troubleshooting if you want to pin-point the problem.) The graphical session terminates and returns to the login screen" In the next post, I will follow other step described X/Troubleshooting page at https://wiki.ubuntu.com/X/Troubleshooting ** Attachment added: "_usr_lib_x86_64-linux-gnu_libexec_kdeconnectd.1000.crash" https://bugs.launchpad.net/ubuntu/+bug/1765160/+attachment/5122788/+files/_usr_lib_x86_64-linux-gnu_libexec_kdeconnectd.1000.crash -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1765160 Title: In ubuntu 18.04,when I unplug the screen cable, the user session close's To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1765160/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs