# Slicer in CentOS 7.6

**URL:** https://discourse.slicer.org/t/slicer-in-centos-7-6/10025
**Category:** Support
**Tags:** visualization
**Created:** [January 30, 2020, 1:44pm UTC](https://discourse.slicer.org/t/slicer-in-centos-7-6/10025 "2020-01-30T13:44:15Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![muntahi398](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muntahi398/32/5302_2.png) [@muntahi398](https://discourse.slicer.org/u/muntahi398)
#### Post date: [January 30, 2020, 1:44pm UTC](https://discourse.slicer.org/t/slicer-in-centos-7-6/10025/1 "2020-01-30T13:44:15Z")

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Operating system: CentOS 7.6  
Slicer version: 4.11.0  
Expected behavior:  
Actual behavior: Data is not shown

Dear people,  
In a server computer running CentOS 7.6, I installed Slicer1.11.0 and downloaded sample model of CTchest.  
I can see its loaded. But in the 3 axis viewer I cant see the images. All extention installtion seems to work fine. Is this any graphics issue? how to resolve?

Attached an screenshot.

 ![Slicer_centos](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/1/c/1c314b6f32af5a608bc7f27767abe57a06702566.png)

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### Author: ![Sam\_Horvath](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sam_horvath/32/3092_2.png) [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)
#### Post date: [January 30, 2020, 2:38pm UTC](https://discourse.slicer.org/t/slicer-in-centos-7-6/10025/2 "2020-01-30T14:38:29Z")

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Hi!

This is likely a graphics issue. Could you send the error log (View-\>ErrorLog on the toolbar)?

Sam

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### Author: ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [January 30, 2020, 2:56pm UTC](https://discourse.slicer.org/t/slicer-in-centos-7-6/10025/3 "2020-01-30T14:56:47Z")

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Do you have multiple monitors connected? What are their resolutions?

You may try to adjust screen scaling by adjusting environment variables - see [Strange Window Layout](https://discourse.slicer.org/t/strange-window-layout/7301/9).

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<div class="post-metadata">

### Author: ![muntahi398](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muntahi398/32/5302_2.png) [@muntahi398](https://discourse.slicer.org/u/muntahi398)
#### Post date: [January 30, 2020, 3:31pm UTC](https://discourse.slicer.org/t/slicer-in-centos-7-6/10025/4 "2020-01-30T15:31:11Z")

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It shows couldnt find compatible OpenGL .  
I checked in the system, it has OpenGL version string: 2.1 Mesa 18.0.5. Slicer needs 3.2 at least.

It is a remote server PC mostly used for simulation with its many cores. and mostly system is not in my control.  
So there is no hope running Slicer in this case?

 ![install_problem1](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/3/1/31825f277541692688a7655270d826cd23fdf344.png)