# Using Slicer via VNC + VirtualGL

**URL:** https://discourse.slicer.org/t/using-slicer-via-vnc-virtualgl/11702
**Category:** Support
**Created:** [May 26, 2020, 3:39am UTC](https://discourse.slicer.org/t/using-slicer-via-vnc-virtualgl/11702 "2020-05-26T03:39:41Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![Deepa](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/deepa/32/5634_2.png) [@Deepa](https://discourse.slicer.org/u/Deepa)
#### Post date: [June 3, 2020, 10:55am UTC](https://discourse.slicer.org/t/using-slicer-via-vnc-virtualgl/11702/6 "2020-06-03T10:55:40Z")

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> [@error: GLSL 1.50 is not supported](https://discourse.slicer.org/t/error-glsl-1-50-is-not-supported/10083/6):
>
> MESA\_GL\_VERSION\_OVERRIDE=3.2 ./Slicer

from [error: GLSL 1.50 is not supported - #4 by pieper](https://discourse.slicer.org/t/error-glsl-1-50-is-not-supported/10083/4) helped.

Unfortunately, even after changing the VGL permission settings to allow all users, VGL didn’t work for me.

Thanks for the support

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