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Questions tagged [xvfb]

Xvfb stands for X virtual frame buffer, and implements the X11 display protocol without actually showing any screen output.

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How to change fonts in Xvfb?

I want to change the default interface font of Xvfb display. I tried this: Xvfb -fn -urw-nimbus mono l-medium-r-normal--0-0-0-0-m-0-koi8-uni :100 & but it didn't work. How do I change ...
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247 views

Selenium + ChromeDriver stuck for exactly 4 minutes

I'm trying to webscrap a web page with CloudFlare protection from remote server: #!/usr/bin/env python3 from xvfbwrapper import Xvfb from selenium import webdriver from selenium.webdriver.chrome....
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427 views

Selenium/Xvfb Issues with Jenkins

I'm struggling to get Jenkins to run Selenium/Xvfb for some functional tests on a project. Either Jenkins will hang and the job never finishes or ends up terminating with errors. This is using the ...
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646 views

Enable GLX extension in Xvfb in Xquartz

The version of Xvfb included in Xquartz on MacOS doesn't support GLX: $ Xvfb +extension GLX [mi] Extension "GLX" is not recognized [mi] Only the following extensions can be run-time enabled: [mi] ...
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0answers
867 views

Xvfb: connection refused when running test script via browser on Fedora

I have a python script which will only be triggered by calling my.ip.address/test. It works fine if I run the PHP code via command line. However,if I access the test automation via browser using the ...
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1answer
1k views

Xvfb with -nocursor shows cursor anyway

I'm using xvfb-run to execute Xvfb: xvfb-run \ --server-num 44 \ -s "-nocursor -ac -screen 0 1280x720x24" \ chromium-browser \ --temp-profile \ --window-size=1280,720 \ --disable-...
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1answer
878 views

Getting the server number when using --auto-servernum with xvfb-run

When I execute an application with xvfb-run, I can either explicitly specify an X11 server number (i.e. 44), or I can use --auto-servernum, which will assign one for me. If I use --auto-servernum, ...
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2answers
1k views

Linux headless and mega.nz sync

I have a server with Ubuntu 14.04 and I need to sync (real-time sync, not push-pull via cronjob) with a mega.nz account. Right now my solution was to install Mate and megasync gui app, but I want ...
2
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1answer
527 views

Use xvfb to automate X program

I sadly have to use this proprietary program that bundles a camera driver. I want to perform a specific action with it, which involves clicking a few buttons. And there is no CLI. So, what is the ...
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0answers
235 views

1 xvfb, multiple applications

According to a previous question, Multiple clients on a single Xvfb server/process?, I can run multiple clients on a single xvfb process. If this is true, then how can this be done? Example: xvfb ...
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1answer
11k views

xvfb-run on Mac OSX

I'm trying to run SlimerJS in headless mode so that it does not open a visible browser window on Mac OSX. According to the SlimerJS docs, this can be done using xvfb which is "available on Linux ...
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1answer
436 views

Xulrunner crash when running with underprivileged user

I use SlimerJs as an headless browser on a server. Because the server have no xserver I used xvfb to run it. The command goes something like this: xvfb-run --server-args="-screen 0, 1024x768x24" ...
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1answer
349 views

Google-chrome crashes on Ubuntu 12.04

I am running chrome inside Xvfb session. I am using Google Chrome 40.0.2214.91 version. I am using the following commands to run it: Xvfb $DISPLAY -screen 0 1920x1080x24 2> /tmp/xvfb.log & ...
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1answer
4k views

AWS EC2 Linux headless Firefox issue: Xvfb: undefined symbol: pixman_glyph_cache_create

I have been using AWS EC2 Linux for a while for a headless Firefox/Selenium task. I built it using the instructions from http://itsallabtamil.blogspot.com/2013/02/setting-up-chrome-firefox-ec2-...
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1answer
2k views

make Xvfb listen only on local ip

to use graphical software even on my debian based systems without graphic cards (or in addition to its main graphic) i use the virtual frame buffer x server Xvfb. I am starting it with a little bash ...
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2answers
601 views

Piping xpra to ffmpeg

I'm trying to record a headless, xpra display. (I've attempted both the xvfb and Xdummy options). The issue is with ffmpeg's "x11grab". The command being used is: /usr/bin/ffmpeg -y -framerate 2 -...
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1answer
169 views

Can I use xvfb on a hpc system without effecting other users?

I'm trying to use some image processing software that requires a X server. And it seems that we can fake a x server using xvfb. So I asked our system administrator to install the xvfb for me. But they ...
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1answer
1k views

Reinit xvfb resources

I user xvfb on my Ubuntu servers mostly to run browsers in Selenium QA automation. I user this servers to test web applications, so I run A LOT of browsers. But after some time errors appears like ...
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3answers
7k views

Got black screen when recording screen from xvfb by ffmpeg x11grab device

I'm trying to record video from a firefox run by xvfb-run but it always output nothing in the video file except black screen. Here's what I did: start a firefox, open google.com: $ xvfb-run firefox ...
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2answers
2k views

X Error of failed request: BadCursor (invalid Cursor parameter) when recording Xvfb with ffmpeg/avconv

I am trying to record video output from Xvfb using ffmpeg or avconv. I start Xvfb with: $ Xvfb :29 -screen 0 1024x768x24 When I later try to record display :29 with avconv (same output for ffmpeg): ...
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1answer
14k views

How can I run lightdm on Xvfb on a Raspberry Pi?

I've got a Raspberry Pi and I'm using it as a headless server. But I want to run X on it. It comes with lightdm, and if you run it using the included HDMI or video out it works, and I can use that and ...
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1answer
2k views

How do I figure out what to set my DISPLAY variable to for a virtual display?

Here's my uname -a info ... Linux qa3398c 2.6.18-194.8.1.el5 #1 SMP Wed Jun 23 10:52:51 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux I'm running some Google Web toolkit tests that require access to a ...
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1answer
1k views

Different behavior under Xvfb and under a real X server / Xvfb alternatives?

I am trying to run a program (Ansys 13 Workbench) that requires a display in batch on a torque managed linux cluster. Running it as an interactive job with X forawrding to my local linux machine ...
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5answers
22k views

Proper way to start xvfb on startup on centos?

I'm following this tutorial, and I want to know the equivalent centos-version of this ubuntu-specific step: You may receive a few warnings regarding fonts and such, but it’ll still work despite these....
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1answer
2k views

Multiple clients on a single Xvfb server/process?

Is is possible to use only one Xvfb process to serve multiple clients simultaneously? Or, phrasing it differently: A Xvfb process maps directly to one screen, i.e., multiple clients share the same ...
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1answer
1k views

How to run Firefox jailed without serious performance loss?

My Firefox configuration is tricky: Firefox runs at separate restricted user account which cannot connect to main X server. Firefox uses Xvfb (virtual "headless" X server) as X server. x11vnc is ...
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1answer
2k views

Xvfb with 32 bit color

For some machines this works, for some it doesn't. Xvfb :99 -screen 0 1280x1024x32 However, on most machines this works: Xvfb :99 -screen 0 1280x1024x24 What is the secret ingredient to getting ...
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2answers
1k views

getting first non display number in use

I need to give a command like Xvfb :6 -screen 0 1024x768x24 Where 6 can be a display number. Now Xvfb can already be using that Display, so how do I get the first display number not in use?
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3answers
2k views

Unable to run openoffice in headless mode

I want to automoate some PPT -> PDF conversions, so I want to run openoffice in headless mode for scripting. On my machine with X running I can start opemoffice in headless mode via soffice -accept=...
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4answers
6k views

Redirecting X output

I have a small program that checks some elements of a web service. The program shows graphics output and displays commmand-line results as well. I have been trying to automate this program to run ...