# Error displaying widget

**URL:** <https://fenicsproject.discourse.group/t/error-displaying-widget/9748>\
**Category:** General\
**Created:** [November 14, 2022, 9:44pm UTC](https://fenicsproject.discourse.group/t/error-displaying-widget/9748 "2022-11-14T21:44:56Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![charithjeewantha](https://yyz2.discourse-cdn.com/free1/user_avatar/fenicsproject.discourse.group/charithjeewantha/32/3948_2.png) [@charithjeewantha](https://fenicsproject.discourse.group/u/charithjeewantha)\
**Post date:** [November 14, 2022, 9:44pm UTC](https://fenicsproject.discourse.group/t/error-displaying-widget/9748/1 "2022-11-14T21:44:56Z")

</div>

When you try to plot the mesh using Pyvista,  
`Error displaying widget` error appears in the Jupyter notebook. For example : [Test problem 1: Channel flow](https://jorgensd.github.io/dolfinx-tutorial/chapter2/ns_code1.html)

The recommendation suggested by @dokken in [here](https://fenicsproject.discourse.group/t/plot-error-using-pyvista/7616) is also not working anymore. (It did work well until now!)

However, when you change the backend to

```auto
pyvista.set_jupyter_backend("ipyvtklink")
pyvista.start_xvfb()

```

it works.

Is this a problem with my computer or has something happened with the Pyvista backends?

Appreciate your help