# Repl suddenly stops displaying output

**URL:** <https://discourse.julialang.org/t/repl-suddenly-stops-displaying-output/36867>\
**Category:** Juno\
**Created:** [April 1, 2020, 7:33pm UTC](https://discourse.julialang.org/t/repl-suddenly-stops-displaying-output/36867 "2020-04-01T19:33:04Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![eirikeb](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/eirikeb/32/11674_2.png) [@eirikeb](https://discourse.julialang.org/u/eirikeb)\
**Post date:** [April 1, 2020, 7:33pm UTC](https://discourse.julialang.org/t/repl-suddenly-stops-displaying-output/36867/1 "2020-04-01T19:33:04Z")

</div>

Hi, I’ve been struggling with this issue for some time now while using Julia, Atom and Juno on PopOS (a version of Ubuntu). The issue started to occured after I updated juno a few weeks ago.

The issue is that suddently the repl stops responding. Interestingly, I can still run and execute code in atom, I just can’t use the repl. For example, highlighting code and pressing ctrl+enter still runs the code, and I can see the output in the document itself, I can create new plots etc. Interestengly, the repl still runs, it just doesnt show any typing, print statements etc (for example, to fix the issue I write `exit()` in the repl, at which point Julia restarts and the repl works as before).

This is of course very annoying, especially give the good ol’ “time to first plot” problem.

I assumed I would be able to pinpoint when this starts happening, but I can’t except that it -usually- happens after I “compile” something (e.g. selecting a function in the editor and pressing ctrl+enter). For example, it never happens in the middle of a long function call (for example 10-15 minutes).

I’ve tried uninstalling Atom which didn’t help.

---

<div class="post-metadata">

**Author:** ![pfitzseb](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pfitzseb/32/45566_2.png) [@pfitzseb](https://discourse.julialang.org/u/pfitzseb)\
**Post date:** [April 1, 2020, 7:36pm UTC](https://discourse.julialang.org/t/repl-suddenly-stops-displaying-output/36867/2 "2020-04-01T19:36:30Z")

</div>

`Ctrl-S` pauses the ~~REPL~~ terminal, so you can either put that keybinding into the whitelisted keybindings setting (under julia-client) or press `Ctrl-Q` to resume.

Edit: [keyboard - How to unfreeze after accidentally pressing Ctrl-S in a terminal? - Unix & Linux Stack Exchange](https://unix.stackexchange.com/questions/12107/how-to-unfreeze-after-accidentally-pressing-ctrl-s-in-a-terminal)

---

<div class="post-metadata">

**Author:** ![eirikeb](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/eirikeb/32/11674_2.png) [@eirikeb](https://discourse.julialang.org/u/eirikeb)\
**Post date:** [April 2, 2020, 2:11pm UTC](https://discourse.julialang.org/t/repl-suddenly-stops-displaying-output/36867/3 "2020-04-02T14:11:56Z")

</div>

Well, I guess my compulsive hammering of the good ol’ `ctrl+s` shows a downside… Thank you!