# Ubuntu20.04, start Slicer, have X11 error

**URL:** https://discourse.slicer.org/t/ubuntu20-04-start-slicer-have-x11-error/29593
**Category:** Support
**Created:** [May 23, 2023, 3:05am UTC](https://discourse.slicer.org/t/ubuntu20-04-start-slicer-have-x11-error/29593 "2023-05-23T03:05:04Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Liang\_Ma](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/liang_ma/32/66068_2.png) [@Liang\_Ma](https://discourse.slicer.org/u/Liang_Ma)
#### Post date: [May 23, 2023, 3:05am UTC](https://discourse.slicer.org/t/ubuntu20-04-start-slicer-have-x11-error/29593/1 "2023-05-23T03:05:04Z")

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Hello, I download the recent release, run Slicer application, and meet such an error ( a GUI display shortly and crashed)

$ ./Slicer  
The X11 connection broke: No error (code 0)  
X connection to :1 broken (explicit kill or server shutdown).  
$ echo $DISPLAY  
:1

I run xclock/xeyes to confirm that there is no problem with my other X applications.

Note I am using a Nvidia 3060 GPU card and I am using Nvidia driver

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<div class="post-metadata">

### Author: ![Liang\_Ma](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/liang_ma/32/66068_2.png) [@Liang\_Ma](https://discourse.slicer.org/u/Liang_Ma)
#### Post date: [May 23, 2023, 7:33am UTC](https://discourse.slicer.org/t/ubuntu20-04-start-slicer-have-x11-error/29593/2 "2023-05-23T07:33:35Z")

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OK, I switched over to another Nvidia driver version–problem solved…