My display manager is lightDM. How can I set it to debug? And with "syslog" you mean you mean journalctl ?
Here are two DMESG now. Connected with dock -> standby -> disconnect -> wakeup -> usersession lost. Disconnected with dock -> standby -> connect -> wakeup -> black screen and nothing happens, maybe a display flash after a long waiting time. The first dmesg I have made again with timestamps. ** Attachment added: "dmesg_standby_connectDock_wakeup_blackscreen.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1820243/+attachment/5254043/+files/dmesg_standby_connectDock_wakeup_blackscreen.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1820243 Title: linux-image-4.18.0-16-generic breaks Lenovo T460P on Ultradock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1820243/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
