Ubuntu got stuck (black/brown screen) before login? [closed]

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The reason I've closed this question is that it's off-topic for this site.

Here on ROS Answers we already have over 48000 questions, and only so many users answering them. As such, to make sure we don't drown in questions, we must try to stay on topic as much as possible.

Your post is about a feature of Ubuntu. While that is an OS that is often used with ROS, that does not make your question on-topic. There is no relation ROS (or at least: it's highly unlikely that ROS has anything to do with this).

I would suggest you seek help on other fora that are dedicated to this kind of questions, such as Ask Ubuntu.

Please also note that you've posted the same question 24 hours ago: #q333826. That was also closed, for the same reason, but with a slightly less explanatory response.

Please don't post duplicates. Regardless of the topic.

I can't paste the image here because I don't have above 5 points.

If you would go back to take a look at some of your earlier questions that have received answers, and then marked some of those questions as answered, you would receive karma points which would allow you to post screenshots.

You can accept answers by clicking the checkmark to the left of the answer. It should turn green.

Thanks! I just reposted the question on Ubuntu instead.