After some experiments I can confirm that it is in some way related to power supply/battery.
In my case bug appeared when laptop switched from `charging` to `fully charged`. I can also confirm, that before black screen with "failed to rotate..." message, the filesystem is switched into read-only mode, which then causes the issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2048704 Title: Crash: Failed to rotate /var/log/journal/* To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/2048704/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs