###I think we should *not* reopen that question but could migrate it to [Unix & Linux][1].

This question is about Debian, not Ubuntu. When a user posts a question about Debian and it *also* applies to Ubuntu--but they are not also using Ubuntu--we still generally consider that off-topic. In this case, the question doesn't even appear to apply to Ubuntu.

The *problem* being solved here seems extremely unlikely to occur on Ubuntu. After all, **Ubuntu already looks like Ubuntu!** As [Zanna says][2], that the OP is running Debian and *not* Ubuntu is a pretty important part of the question, and it is Debian users--not Ubuntu users--that the question stands to help.

I've seen a login screen like the OP's all the time on Debian, and never on Ubuntu. Even if the problem *does* also happen on Ubuntu, we usually only generalize off-topic questions for the purposes of reopening them when they are particularly useful to Ubuntu users. In practice this typically means that there are already helpful answers that clearly provide value--*often* by having multiple upvotes--and that there is some reason to avoid migrating the question, such as it being *(a)* especially useful to Ubuntu users or *(b)* too old to migrate.

Right now, with the edits that have been applied to it to, the question doesn't even make any sense:

> I'm using LightDM Greeter and my LoginScreen looks like [this][3]. I wonder if it is possible to make it look like the [ubuntu][4] version? ***...***

If readers are supposed to assume this could be Ubuntu, how are they supposed to interpret the text "make it look like the ubuntu version?" As currently written, if the question were reopened as note being *off-topic*, it would probably be swiftly re-closed as *unclear*.

If your concern is that the question should be *(a)* answered or *(b)* not lost, then I think the solution is to improve the question a bit--restoring the information about Debian, inlining the images into the post, copyediting--and to ask a moderator to migrate the question to [Unix & Linux](https://unix.stackexchange.com/). (The improvements should be made prior to migration because only high-quality material ought to be migrated.)


  [1]: https://unix.stackexchange.com/
  [2]: https://meta.askubuntu.com/questions/17295/needlessly-closed-a-question#comment35743_17295
  [3]: https://i.sstatic.net/fdjql.png
  [4]: https://i.sstatic.net/tDczO.png