# RViz Backend UI not showing via noVNC

**URL:** <https://forum.compas-framework.org/t/rviz-backend-ui-not-showing-via-novnc/444>\
**Category:** compas\_fab\
**Created:** [March 5, 2021, 7:12pm UTC](https://forum.compas-framework.org/t/rviz-backend-ui-not-showing-via-novnc/444 "2021-03-05T19:12:51Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![JorivdKolk](https://avatars.discourse-cdn.com/v4/letter/j/e9a140/32.png) [@JorivdKolk](https://forum.compas-framework.org/u/JorivdKolk)\
**Post date:** [March 5, 2021, 7:12pm UTC](https://forum.compas-framework.org/t/rviz-backend-ui-not-showing-via-novnc/444/1 "2021-03-05T19:12:51Z")

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I have installed the UR5 Demo in docker. The container seems to be running properly, I have been following the examples on the Compas fab website. I wanted to look at the UI through noVNC, for the next example, but it seems the UI is somehow not loading properly, see the image.

 ![Compas fab UI problem](https://us1.discourse-cdn.com/flex015/uploads/compas_framework1/original/1X/ca1d4a6d3bf14f55af0aff5ea135b569dc8d19e7.jpeg)

I think I have installed everything properly, and so far I have been able to follow all the examples up until 3.3 of the ROS examples.

I’m running Windows 10 Professional on a Surface Book 2 with an i7 processor and Gforce 1050 graphics card.

What can cause this problem? Thank you very much in advance.

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**Author:** ![gonzalocasas](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/gonzalocasas/32/127_2.png) [@gonzalocasas](https://forum.compas-framework.org/u/gonzalocasas)\
**Post date:** [March 12, 2021, 3:23pm UTC](https://forum.compas-framework.org/t/rviz-backend-ui-not-showing-via-novnc/444/2 "2021-03-12T15:23:31Z")

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Hi @JorivdKolk

This indeed looks like a graphic card issue, I remember seeing the same thing occasionally but it tends to go away after I restart the containers.

Does it persist on your side?

Cheers

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**Author:** ![JorivdKolk](https://avatars.discourse-cdn.com/v4/letter/j/e9a140/32.png) [@JorivdKolk](https://forum.compas-framework.org/u/JorivdKolk)\
**Post date:** [March 15, 2021, 8:00am UTC](https://forum.compas-framework.org/t/rviz-backend-ui-not-showing-via-novnc/444/3 "2021-03-15T08:00:25Z")

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Hi @gonzalocasas,

Thank you for your reply! For me, the problem persists. Restarting the containers does not help,  
unfortunately. Is there a way to fix it?  
The rViz viewer is not required for the use of compas\_fab I have learned in the meantime, so I think I’ll just avoid using it.

Cheers, Jori

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**Author:** ![gonzalocasas](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/gonzalocasas/32/127_2.png) [@gonzalocasas](https://forum.compas-framework.org/u/gonzalocasas)\
**Post date:** [March 18, 2021, 8:42pm UTC](https://forum.compas-framework.org/t/rviz-backend-ui-not-showing-via-novnc/444/4 "2021-03-18T20:42:22Z")

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Correct, it’s not needed, in fact, it slows down your computer and if you don’t use it, it’s totally superfluous. We have some docker-compose files with more customization than the default ones over here: [COMPAS-II-FS2021/docker/ur5-planner at main · compas-teaching/COMPAS-II-FS2021 · GitHub](https://github.com/compas-teaching/COMPAS-II-FS2021/tree/main/docker/ur5-planner) this one is an example of launching the MoveIt for a UR5 robot but not launching any of the GUI tools so the things runs much lighter.