Comments on: Xvfb and Firefox headless screenshot generator http://ivanvillareal.com/linux/xvfb-and-firefox-headles-screenshot-generator/ IT stuff and more... Thu, 02 Feb 2012 19:34:53 +0000 hourly 1 By: Ivan Villareal http://ivanvillareal.com/linux/xvfb-and-firefox-headles-screenshot-generator/comment-page-1/#comment-7 Ivan Villareal Wed, 27 Jan 2010 00:49:10 +0000 http://ivanvillareal.com/?p=10#comment-7 <a href="#comment-6" rel="nofollow">@methode </a> No I don't think killing Xvfb had anything to do with this weird output you are getting, this is because I did a larger app and I'm killing Xvfb everytime I need to restart the process and I didn't had this problem. You can try to debug your issue by running manually every step, first run Xvfb and on a second terminal take a screenshot, if it looks ok, open firefox inside of that Xvfb session and take a screenshot again, an easier way to debug this is changing Xvfb to X, and do all your testing trough an ssh session, that way you can look how your script performs and get an idea of what is going wrong. @methode
No I don’t think killing Xvfb had anything to do with this weird output you are getting, this is because I did a larger app and I’m killing Xvfb everytime I need to restart the process and I didn’t had this problem.

You can try to debug your issue by running manually every step, first run Xvfb and on a second terminal take a screenshot, if it looks ok, open firefox inside of that Xvfb session and take a screenshot again, an easier way to debug this is changing Xvfb to X, and do all your testing trough an ssh session, that way you can look how your script performs and get an idea of what is going wrong.

]]> By: methode http://ivanvillareal.com/linux/xvfb-and-firefox-headles-screenshot-generator/comment-page-1/#comment-6 methode Mon, 25 Jan 2010 07:55:25 +0000 http://ivanvillareal.com/?p=10#comment-6 Excellent tutorial! Ivan, a question: for some reason I get some weird colors instead of the real output when generating the image with import. I'm not sure why but I smell it's because I killed Xvfb and that didn't start up properly the next time. The interesting is, that for the first time I took the screenshot it all worked properly; so I wrote a bash script to start and stop (with kill) the X and export the image. I assume stopping the X was a very stupid idea. So now I'm trying to fix these weird colors: http://picasaweb.google.com/lh/photo/2qWs1qIeM1W7lMKIwoJnqQ?authkey=Gv1sRgCNeRqrGLyufi9AE&feat=directlink Any idea on this? Excellent tutorial!

Ivan, a question: for some reason I get some weird colors instead of the real output when generating the image with import. I’m not sure why but I smell it’s because I killed Xvfb and that didn’t start up properly the next time. The interesting is, that for the first time I took the screenshot it all worked properly; so I wrote a bash script to start and stop (with kill) the X and export the image. I assume stopping the X was a very stupid idea.
So now I’m trying to fix these weird colors: http://picasaweb.google.com/lh/photo/2qWs1qIeM1W7lMKIwoJnqQ?authkey=Gv1sRgCNeRqrGLyufi9AE&feat=directlink

Any idea on this?

]]> By: Ivan Villareal http://ivanvillareal.com/linux/xvfb-and-firefox-headles-screenshot-generator/comment-page-1/#comment-3 Ivan Villareal Wed, 07 Oct 2009 16:54:45 +0000 http://ivanvillareal.com/?p=10#comment-3 browser.sessionstore.resume_from_crash was set to false, what worked for me was to change some settings and add the extensions on another firefox instance and then copying all the .mozilla folder to the home directory of the user that will be running the Xvfb, I've also used an extension to make firefox tabless, because I didn't found a way to close specific tabs. browser.sessionstore.resume_from_crash was set to false, what worked for me was to change some settings and add the extensions on another firefox instance and then copying all the .mozilla folder to the home directory of the user that will be running the Xvfb, I’ve also used an extension to make firefox tabless, because I didn’t found a way to close specific tabs.

]]> By: Eric Clemmons http://ivanvillareal.com/linux/xvfb-and-firefox-headles-screenshot-generator/comment-page-1/#comment-2 Eric Clemmons Wed, 07 Oct 2009 16:39:25 +0000 http://ivanvillareal.com/?p=10#comment-2 What settings in the profile did you modify to prevent the "Firefox did not shutdown properly" errors? What settings in the profile did you modify to prevent the “Firefox did not shutdown properly” errors?

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