Ubuntu 18.04, nvidia drivers and second monitor

I installed Ubuntu 18.04 from scratch (I decided to switch to ROS Melodic ). Understandable that ubuntu did not see nvidia drivers by default. But as it works – do not touch. But I decided to connect a second monitor … I checked hdmi cable … well, the second monitor is not exist anyway.

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Problems with update gitlab 8.4 -> 10.1

Context. There is a gitlab-ce version 8.4.1 with a couple of old projects. It was planned to start new projects, so I want to update the system so that it will work the next couple of years.
What I did (Ubuntu 16.04): apt-get dist-upgrade && gitlab-ctl reconfigure . Yes, I’m fearless (the project code was cloned along with all the branches!). Gitlab was updated to 10.1, but it did not start.
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