travis-ci/travis-cookbooks — comment on commit 9dd192a73db1db1840a59a6b2ce334832152c04d
File:  line 0
By parndt:

For what it's worth, here's how I start Xvfb on Travis:

https://github.com/resolve/refinerycms/blob/master/.travis.yml#L3

It seems to start reliably and be available in time :-) I then use
DISPLAY=:99.0 as an ENV var for the application on line 5.