# error: GLSL 1.50 is not supported

**URL:** <https://discourse.slicer.org/t/error-glsl-1-50-is-not-supported/10083>\
**Category:** Support\
**Created:** [February 3, 2020, 2:01pm UTC](https://discourse.slicer.org/t/error-glsl-1-50-is-not-supported/10083 "2020-02-03T14:01:50Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [February 4, 2020, 4:29pm UTC](https://discourse.slicer.org/t/error-glsl-1-50-is-not-supported/10083/2 "2020-02-04T16:29:43Z")

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Hi -

It can be a challenge to get GPU drivers working on linux - here are some instructions that might help, based on [this document about how to start from scratch on a virtual machine](https://github.com/QIICR/SlicerGCPSetup/blob/master/README.md). The are for debian but centos should be similar I guess.

```auto
Execute the following and take note of the BusID

sudo nvidia-xconfig --query-gpu-info
Open the X11 configuration file

sudo vim /etc/X11/xorg.conf
and insert the following BusID line using the BusID value you retrieved earlier into this Section:

Section "Device"
   Identifier "Device0"
   Driver "nvidia"
   VendorName "NVIDIA Corporation"
   BusID "PCI:0:4:0"
EndSection
or if /etc/X11/xorg.conf does not exist, create a file in /usr/share/X11/xorg.conf.d/xorg.conf with the contents listed above.

```

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