# SageMath Kernel in jupyter-lab desktop app disconnected

**URL:** <https://discourse.jupyter.org/t/sagemath-kernel-in-jupyter-lab-desktop-app-disconnected/11033>\
**Category:** JupyterLab\
**Tags:** help-wanted\
**Created:** [September 30, 2021, 2:41pm UTC](https://discourse.jupyter.org/t/sagemath-kernel-in-jupyter-lab-desktop-app-disconnected/11033 "2021-09-30T14:41:29Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![lacaster](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.jupyter.org/lacaster/32/5353_2.png) [@lacaster](https://discourse.jupyter.org/u/lacaster)\
**Post date:** [September 30, 2021, 2:41pm UTC](https://discourse.jupyter.org/t/sagemath-kernel-in-jupyter-lab-desktop-app-disconnected/11033/1 "2021-09-30T14:41:29Z")

</div>

Hi.

I’m new in using jupyter. Yesterday, I installed the jupyterlab desktop app and I’m with some problem using SageMath Kernel.

I’m using Ubuntu 20.04.

I installed SageMath using conda with the command:

conda install -c conda-forge sage

When I start jupyter-lab from the command line Sage works. But when I use jupyterlab desktop app the kernel is disconnected after some seconds. (See image below)

 ![jupyter-lab-app](https://canada1.discourse-cdn.com/flex031/uploads/jupyter/original/2X/e/e493435569ef1058951eeb579dd0128cef110664.png)

I think that is related with conda but I don’t know how to fix it and I need help.

Sorry for english mistakes and thanks for the help.

---

<div class="post-metadata">

**Author:** ![JvT](https://avatars.discourse-cdn.com/v4/letter/j/8797f3/32.png) [@JvT](https://discourse.jupyter.org/u/JvT)\
**Post date:** [May 5, 2022, 10:04am UTC](https://discourse.jupyter.org/t/sagemath-kernel-in-jupyter-lab-desktop-app-disconnected/11033/2 "2022-05-05T10:04:27Z")

</div>

I’m having the same problem on Fedora 35. Could you work out what was the problem?

---

<div class="post-metadata">

**Author:** ![lacaster](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.jupyter.org/lacaster/32/5353_2.png) [@lacaster](https://discourse.jupyter.org/u/lacaster)\
**Post date:** [May 6, 2022, 6:59pm UTC](https://discourse.jupyter.org/t/sagemath-kernel-in-jupyter-lab-desktop-app-disconnected/11033/3 "2022-05-06T18:59:56Z")

</div>

Hi JvT. I couldn’t solve it. A few months later, I ended up installing Manjaro GNU/Linux and it works fine.

---

<div class="post-metadata">

**Author:** ![JvT](https://avatars.discourse-cdn.com/v4/letter/j/8797f3/32.png) [@JvT](https://discourse.jupyter.org/u/JvT)\
**Post date:** [May 6, 2022, 11:08pm UTC](https://discourse.jupyter.org/t/sagemath-kernel-in-jupyter-lab-desktop-app-disconnected/11033/4 "2022-05-06T23:08:53Z")

</div>

I see. I think it has something to do with conda (Anaconda, Miniconda etc) since if I uninstall it the kernel connects again. So for now I’ve just removed my Anaconda.