# Glitch CR in new Ubuntu

**URL:** https://forum.clonkspot.org/t/glitch-cr-in-new-ubuntu/612
**Category:** Help
**Created:** [29. April 2014 um 21:30 UTC](https://forum.clonkspot.org/t/glitch-cr-in-new-ubuntu/612 "2014-04-29T21:30:07Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![Kandif](https://forum.clonkspot.org/letter_avatar_proxy/v4/letter/k/7ab992/32.png) [@Kandif](https://forum.clonkspot.org/u/Kandif)
#### Post date: [29. April 2014 um 21:30 UTC](https://forum.clonkspot.org/t/glitch-cr-in-new-ubuntu/612/1 "2014-04-29T21:30:07Z")

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I installed new Ubuntu (14.04) in my computer and run clonk rage. At once I have glitch.  
When i click any key during the game (and menu too somewhere) It executes two times, for example when i click ESC It shows and hides window&nbsp; concurrently . I dont know why. Game as you can think works on older version of System Ubuntu 12.04 which I used.  
  
Thanks in advance.  
  
I wrote this post here because There isn't appropriate category.

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### Author: ![Kanibal](https://forum.clonkspot.org/letter_avatar_proxy/v4/letter/k/b487fb/32.png) [@Kanibal](https://forum.clonkspot.org/u/Kanibal)
#### Post date: [29. April 2014 um 21:38 UTC](https://forum.clonkspot.org/t/glitch-cr-in-new-ubuntu/612/2 "2014-04-29T21:38:53Z")

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I can dimly remember that it had to do something with the XMODIFIERS environment variable. Dunno exactly though.

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### Author: ![B\_E](https://forum.clonkspot.org/user_avatar/forum.clonkspot.org/b_e/32/29_2.png) [@B\_E](https://forum.clonkspot.org/u/B_E)
#### Post date: [29. April 2014 um 23:30 UTC](https://forum.clonkspot.org/t/glitch-cr-in-new-ubuntu/612/3 "2014-04-29T23:30:22Z")

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Kanibal is [correct](https://clonkforge.net/bugtrack.php?shbug=12161): unset the XMODIFIERS variable before starting, e.g. in bash  
  
`$ unset XMODIFIERS$ ./clonk`

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### Author: ![Luchs](https://forum.clonkspot.org/user_avatar/forum.clonkspot.org/luchs/32/9_2.png) [@Luchs](https://forum.clonkspot.org/u/Luchs)
#### Post date: [30. April 2014 um 05:57 UTC](https://forum.clonkspot.org/t/glitch-cr-in-new-ubuntu/612/4 "2014-04-30T05:57:03Z")

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> \>I wrote this post here because There isn't appropriate category.

  
Sorry for that, I created one now.

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### Author: ![Ultrawipf](https://forum.clonkspot.org/letter_avatar_proxy/v4/letter/u/43a26b/32.png) [@Ultrawipf](https://forum.clonkspot.org/u/Ultrawipf)
#### Post date: [1. Mai 2014 um 18:07 UTC](https://forum.clonkspot.org/t/glitch-cr-in-new-ubuntu/612/5 "2014-05-01T18:07:40Z")

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I had this problem too.  
Fixed it by changing the keyboard input methods.