xvfb

问题 I'm wondering what the advantages/disadvantages of one over the other are? I'm running against Selenium Server on a headless remote instance with Xvfb acting as the display. Both methods work fine and the resulting screen capture file (if I convert the base64 one and save it as an image file) are identical file size and look identical. So why would I want to use/not use one over the other? 回答1: With the get_screenshot_as_file, the screenshot get saves into a binary file, while with get

问题 I'm using Chrome in a Docker container (published by SeleniumHQ) to run automated tests in the Cloud. This runs a minimal display environment on XVFB that you can VNC into to see results. Now we're using this within a Corporate firewall - and so external requests need to go through a proxy. We're setting the proxy with the Selenium proxy command. Now we've run a test on the command line with curl on the Chrome docker container and curl with the proxy can access external resources just fine.

问题 My java webapp hosted within a tomcat 7.0.39 needs xvbf to write into images and output them to the client. When I open the servlet which handles the image writing I get the following error message: 15.05.2013 21:24:56 org.apache.catalina.core.ApplicationContext log SCHWERWIEGEND: StandardWrapper.Throwable java.awt.HeadlessException at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:159) at java.awt.Window.<init>(Window.java:414) at java.awt.Frame.<init>(Frame.java:403) at

问题 I have a job in Jenkins that runs UI tests written in Selenium. The job can run multiple instances of it concurrently. I am running into a problem while trying to use Xvfb (the Xvfb plugin or otherwise). Using the Xvfb plugin The configuration is as below. The plugin assigns the same display port to 2 concurrent job instances, and then one fails. From the Xvfb log (note displayfd is 2 and screen is 0 in both cases): Xvfb starting$ /usr/bin/Xvfb -displayfd 2 -screen 0 1024x758x16 -fbdir /srv

问题 i am facing issues with Xvfb on remote linux. when i run the command Xvfb :99 & I get this messages on the command line Initializing built-in extension Generic Event Extension Initializing built-in extension SHAPE Initializing built-in extension MIT-SHM Initializing built-in extension XInputExtension Initializing built-in extension XTEST Initializing built-in extension BIG-REQUESTS Initializing built-in extension SYNC Initializing built-in extension XKEYBOARD Initializing built-in extension

问题 I am trying to get Selenium to do some automated browsing on a Linux application server. I am stuck at the point where my 'perl recording' from Selenium sends a request to start the browser, and the standalone selenium server throws an error - 'Timed out waiting for profile to be created!'. I understand from browsing this error, that I could resolve this by creating a profile for the firefox browser I installed on the linux server. However, when I try to create a profile, I now get the error

问题 I install selenium, chrome, pyvritualdisplay and xvfb using the following tutorial: https://christopher.su/2015/selenium-chromedriver-ubuntu/ when i try to run a python selenium script i get this error when i call webdriver.Chrome() I'm using python2.7.6 on Ubuntu 14.04.3 LTS Traceback (most recent call last): File "selenium_python_unittests/attempt_50.py", line 9, in <module> driver = webdriver.Chrome() File "/home/sele/headless/local/lib/python2.7/site-packages/selenium/webdriver/chrome

问题 I have an ubuntu headless server with JavaFX and Xfvb up and running. Now I have a very similar Ubuntu server and try to get my JavaFX App running with Xvfb. But I allways get an exception thrown: Prism ES2 Error - nInitialize: glXChooseFBConfig failed Xlib: extension "RANDR" missing on display ":99". Usually I could solve xrandr exception by exporting LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/ But not this time. I really have no idea what is wrong ... This is how I usually start the server:

问题 I have a script that needs to interact with a webpage via selenium. I need to use some kind of virtual display to keep the browser from showing up. The script as a whole works great until I introduce Xvfb into the mix. When I do that I get an ElementNotVisibleException the first time I actually try to interact with the page. I've tried using xvfbwrapper and pyvirtualdisplay with the same effect. And here is code that doesn't work: from xvfbwrapper import Xvfb vdisplay = Xvfb() vdisplay.start(

问题 I try to run firefox in headless mode for selenium. $xvfb-run firefox seems to work. I run firefox through selenium so i cannot run xvfb-run directly. So i start Xvfb :1 -screen 0 1024x768x24 & and then set DISPLAY:=1 env DISPLAY:=1 Still when i run firefox i get Error: no display specified I run on centos 6 and firefox 38 ESR. What can be done? 回答1: can you try that? export DISPLAY=:1 回答2: start firefox with --display arg /usr/bin/firefox --display=:1 来源： https://stackoverflow.com/questions