# Capybara, webdriver not launching on xvfb display

**URL:** <https://www.ruby-forum.com/t/capybara-webdriver-not-launching-on-xvfb-display/190848>\
**Category:** Rails\
**Created:** [June 29, 2010, 6:04am UTC](https://www.ruby-forum.com/t/capybara-webdriver-not-launching-on-xvfb-display/190848 "2010-06-29T06:04:08Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![85niner](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/8/a4c791/32.png) [@85niner](https://www.ruby-forum.com/u/85niner)\
**Post date:** [June 29, 2010, 6:04am UTC](https://www.ruby-forum.com/t/capybara-webdriver-not-launching-on-xvfb-display/190848/1 "2010-06-29T06:04:08Z")

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Hey Guys,

I’m trying to run cucumber (capybara) in a xvfb, I’ve set it up  
correctly, and can manually launch firefox using “DISPLAY=:99  
firefox”.  
I’m 100% this works, because I’ve set up a vncserver bound to that  
xvfb, and I can see firefox comes up…

But if I DISPLAY=:99 cucumber, firefox doesn’t bind to that display  
and times out after 60 seconds. Any ideas on what could be causing  
this and how I can resolve?

I’ve even tried to launch xterm into the xvfb and run cucumber in  
there, with no luck. DISPLAY=:99 rake cucumber:all doesn’t seem to  
work either. I’m thinking this has something to do with the way  
webdriver launches a firefox instance. I can’t seem attach it!

Any help would be appreciated.

Many thanks,  
Mark