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From Daniel Alheiros <>
Subject Re: Yo yo... Xvfb, selenium blah
Date Fri, 08 Jun 2007 10:43:19 GMT

Sorry if I'm saying something stupid, but it's been a long time since I read
the forum discussions.

Wouldn't be enough to use the Java standard headless support?
It was introduced in JDK 1.4.2 (

I've used both xvfb and AWT headless and I could say that the second option
was much simpler to set up and more compatible.


On 8/6/07 04:50, "Jason Dillon" <> wrote:

> And now I think I've got the auto-detection of free display and rough/
> good-enough verification of Xvfb working now.
> Seems to work... so I've updated the docs a wee bit and deployed a
> new 1.0-beta-2-SNAPSHOT.
> I think I'm down working on this for now.  So Prasad, please have a
> look and let me know if this will work for you.  If so, I'll start a
> vote for a release later next week.
> On revision from the notes below, the default display is now :20, and
> it will try and detect a free display from :20 to :30 (and then give
> up and barf).
>   * * *
> BTW, the Xvfb config needs to be put into a profile, and explicitly
> activated, otherwise it will hose folks who don't have Xvfb installed
> (and the profile must cause the execution of the xvfb goal before
> start-server).  I suppose if we really want I could probably figure
> out how to detect when Xvfb is needed and if its available, but...
> for now lets just make it explicitly activated for folks that need
> the testsuite to run on a headless system.
> Cheers,
> --jason
> On Jun 7, 2007, at 8:05 PM, Matt Hogstrom wrote:
>> Cool shtuffes ... your a busy beaver.
>> On Jun 7, 2007, at 6:52 PM, Jason Dillon wrote:
>>> So, I hacked up something in the latest 1.0-beta-2-SNAPSHOT of the
>>> selenium-maven-plugin.  Its deployed, and some site docs updated.
>>> headless-with-xvfb.html
>>> Still needs more meat, but I wanna make sure it works before I
>>> start investing in more docs.
>>> But basically, you need to configure an execution *before* start-
>>> server, for xvfb.  It will be default background, etc.  See the
>>> goal doc for more details:
>>> Currently it will default to using DISPLAY=":1", not sure if that
>>> is correct or not.  Then it will fork an Xvfb process, write out a
>>> target/selenium/ file, which has the DISPLAY= in
>>> it.  And I updated the start-server goal to look for that file,
>>> and if it exists set environment variables for each key/pair in
>>> that file.
>>> I think that should be sufficient to get headless muck working...
>>> though I've not tested any of it ;-)
>>> I think you will need to make the Xvfb process suid, as in:
>>>     chmod u+s `which Xvfb`
>>> This puppy needs to be run as root, or at least AFAIK it does.
>>> Anyways, give it a shot and lemme know how well it works, or if it
>>> works at all.  I will be around tomorrow to fix it up as needed.
>>> Maybe my network will be stable then so I can run some tests on
>>> the systems and better see how well it works out.
>>> Aighty?
>>> Cheers,
>>> --jason
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