Here is the log file. It includes multiple reboots. The first batch of reboots is *PRE* today's apt-get dist-upgrade, the second batch is *POST* today's apt-get dist-upgrade.
BEHAVIOR HAS CHANGED BETWEEN UPDATES. The onboard keyboard briefly flashes for about 500ms before disappearing. ** Attachment added: "onboard_naughty.log" https://bugs.launchpad.net/ubuntu/+source/onboard/+bug/1562734/+attachment/4634929/+files/onboard_naughty.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1562734 Title: Onboard keyboard shows black box on login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/onboard/+bug/1562734/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs