Questions tagged [xvfb]
The xvfb tag has no usage guidance.
74
questions
0
votes
1
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views
SWTError: No more handles [gtk_init_check() failed running web-app in Tomcat9 on RHEL9.4 with Xvfb
We are running a third-party Java web application in Tomcat 9.0.87 on RHEL9.4. When the web app starts it raises the following exception that we (working with vendor support team) can't seem to get ...
- 101
0
votes
0
answers
118
views
Could not open display using Kubernetes service URL
I'm working on launching graphical applications on a k8s cluster.
My configuration is the following :
In a 1st pod, I running a X-server & a VNC Server
spec:
containers:
- name: test-x-...
- 101
0
votes
1
answer
178
views
How to debug (gdb) a binary that is invoked with xvfb-run?
I have a binary that I usually run as follows:
$ xvfb-run ./bin --param1 foo
However, now that I need to debug it using GDB, I'm not able to do:
$ gdb --args xvfb-run ./bin --param1 foo
because &...
- 305
0
votes
0
answers
98
views
zoom meeting with cron
My zoom class teacher doesn't give us a link with a hashed password and I am using this to open zoom from command line. (EDIT: Later I knew that normal zoom command open a link with non-hashed ...
- 101
4
votes
0
answers
2k
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Puppeteer/Chromium on Debian Docker K8s: "Failed to open an X11 connection"
This is driving me crazy, did not think it would be this hard to get a headless chromium instance running with puppeteer launch config.
Here's the error:
# launching puppeteer with config {"args&...
- 141
5
votes
1
answer
851
views
What is the "native" frame rate of an Xvfb screen?
I am emulating a screen with Xvfb, and I want to capture it with ffmpeg. In order to prevent frame dropping or duplication, I would like to capture at the exact refresh rate of the screen, but it ...
- 485
2
votes
0
answers
2k
views
How to pass display number to xvfb-run?
I tried to start chrome with xvfb-run:
Ubuntu 18.04.5 LTS
Chromium 105.0.5173.0
If I specified display number as 76, xvfb-run failed to start:
$ xvfb-run --error-file=/tmp/Xvfb-errors.log -s ":...
- 121
1
vote
0
answers
257
views
Selenium XVFB - Unable to receive message from renderer
Overview:
Selenium scraper works perfectly in headless mode. Spawning a virtual display shows no errors via XVFB:
from xvfbwrapper import Xvfb
vdisplay = Xvfb()
vdisplay.start()
vdisplay.stop()
But ...
- 111
1
vote
0
answers
587
views
Virtual Display but with GPU/Hardware Acceleration
To do some automated screen recordings for promo videos of web applications I'm using chromium/selenium inside of xvfb to run the web application and ffmpeg to record the video. Even tough this looks ...
- 111
0
votes
2
answers
388
views
Raspbian running headless doing scripted procedures on a internet page using text browser
I am somewhere between a new and intermediate linux user.
I am setting up a local network for a small group, and I need to configure an automatic sign-in to a webportal when internet connectivity is ...
- 11
2
votes
2
answers
3k
views
Multiple monitors with xfreerdp and Xvfb
I am trying to start an X server with multiple screens on a single Xvfb like this:
Xvfb :50 -screen 0 1792x1120x24 -screen 1 1792x1120x24
and start an RDP connection which will use those two screens:
...
- 131
1
vote
1
answer
513
views
Problem with XServer - _XSERVTransSocketUNIXAccept: accept() failed
I run a headless Manjaro server with Xhost and Xvfb (for a display) and after about 236 instances of a program running, the server starts lagging a lot and the error _XSERVTransSocketUNIXAccept: ...
- 31
0
votes
0
answers
494
views
How to improve XVFB display quality
I am currently running chrome on AWS Linux servers with this Puppeteer and XVFB setup.
I also built a little chrome extension that handles the recording with MediaRecorder and chrome.tabCapture.
It's ...
0
votes
1
answer
751
views
Mouse doesn't work on xvfb
I am on ubuntu 18.04 (sadly, because of external considerations - EC2).
I run the following lines:
sudo /usr/bin/Xvfb :0 -ac -screen 0 1024x768x24 &
/usr/local/bin/x11vnc -dp -noxdamage -geometry ...
- 113
1
vote
0
answers
9k
views
Is X server running? xdpyinfo: unable to open display "" on Ubuntu 18.04 server
I'm attempting to start a program that requires rendering a window (Unity Game) on a remote server that doesn't have a display attached to it. I wouldn't want to use ssh -X to forward rendering ...
- 111
2
votes
0
answers
441
views
Unable to send keypress to Xvfb display using XTestFakeKeyEvent in C
Using this short snipped of code I am able to capture events from the keyboard (/dev/input/event1) and print them properly. However, sending them to the Xvfb display using XTestFakeKeyEvent does not ...
- 21
1
vote
1
answer
92
views
Google Chrome Extension not starting on cloned Linux Ubuntu 20.04 Virtual Machines
My own Google Chrome Extension should start when the Google Chrome browser is opened (via crontab xvfb-run), but it does not. The Extension is used via Developer mode and is not published in the ...
- 11
2
votes
1
answer
2k
views
Why are my Xvfb screenshots black with traces of color (Ubuntu 16.04 LTS)
I am running a headless Ubuntu 16.04 LTS in the Google Cloud. There is an application I need to run in the background that requires a GUI. I am trying to use Xvfb to allow the program to run, but as ...
- 23
3
votes
0
answers
184
views
Can we share an application window among different users/X servers?
We have a family machine with KDE, where each member has a different account. Mom, dad and children.
There are a few applications we'd like to be shared in such a way that they be available to all ...
- 31
3
votes
1
answer
3k
views
Display xvfb output in remote PC
I have a Windows pc that I use to connect to my Ubuntu PC over ssh that I use as a server (18.04) that is connected only to the internet and power (No monitor). When I run glxgears -info I only get 8-...
user396583
5
votes
1
answer
3k
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Running GLFW in Docker
I have a simple program written in Go that opens a blank window using GLFW. I'd like to automatically run tests, therefore I have been trying to get GLFW running in docker. So far I've already managed ...
- 181
2
votes
0
answers
388
views
2 x11vnc servers with separate displays showing different windows, overlapping
I am running a python (includes pygame) program on debian-jessie system with x11vnc and xvfb installed. I want to display terminal window and pygame window separately using xvfb and x11vnc. My ...
- 121
0
votes
1
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524
views
Can't Run xvfb @ 16:9 on MATROX MGA-G200
Capturing server screen configured as follow, the screen capture occurs but the ratio captured is not 16:9, is that due to video card ?
Did :
cvt 1920 1080 60
xrandr --newmode "1920x1080_60.00" ...
- 101
0
votes
1
answer
2k
views
Xvfb: export display permanently
I have recently set up Xvfb on Centos 7 machine.
It is working absolutely fine.
Only problem is that if I quit putty session (remote access) it would keep running Xvfb in background but display ...
- 25
5
votes
1
answer
4k
views
How to display an X11 screen from a remote machine? (Alternative to ssh -X)
I am locally on a machine without root rights. X forwarding is disabled.
Remotely I am running a process on a machine without a screen, using the Xvfb virtual framebuffer which simulates an X server ...
- 8,984
1
vote
1
answer
555
views
Looking for a simple smoke-test for xvfb
I have a server (Tomcat) that uses xvfb for headless rendering with libwebkit.
I have a very short Java sample code to test that the whole setup (xvfb+libwekit, called from Java) works.
It works on ...
- 9,068
5
votes
2
answers
3k
views
Xvfb + glxgears fails
I'm trying to use Xvfb, but it can't even run glxgears for some reason, and I don't know how to debug that, maybe I'm missing something. Here's the commands I'm using:
Xvfb :99 +extension GLX -screen ...
- 73
0
votes
1
answer
1k
views
How can I prevent running "Xvfb :10 -ac" if it has already been run before?
I'm using Amazon Linux. I'm running an automated script through Jenkins with this command
Xvfb :10 -ac
However, if this command has already been run before, I get the error ...
(EE)
Fatal server ...
- 2,648
2
votes
1
answer
14k
views
Installing xvfb on Debian
I am trying to install xvfb on Debian in a Docker container.
The base image for the Docker container is
node:8
install instructions => How to install xvfb on Debian 8 (Jessie) | howtoinstall.co
So ...
- 10.4k
1
vote
1
answer
2k
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Debian: Start Xvfb with systemd script and send to background
Im trying to write a systemd script which starts Xvfb in the background.
Doing this in the console is no problem of course with appended "&".
But i tried to write a systemd script and when im ...
- 163
0
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1
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1k
views
Xvfb in Python virtual environment
I have some code that uses gtk so unless there is an active DISPLAY, the code raises an RuntimeError: could not open display… This happens when I run tox.
Is there a way to run a Xvfb server from ...
26
votes
1
answer
13k
views
How do I take a screen shot of my Xvfb buffer?
I'm using Amazon Linux. I want to run a headless chromium browser to use on my node.js Selnium tests. So I fire up my Xvfb server like so ...
if ! pidof /usr/bin/Xvfb; then Xvfb :0 -screen 5 ...
- 2,648
2
votes
0
answers
750
views
WebDriverError: unknown error: Chrome failed to start: crashed
I am trying to execute test scripts using Protractor, Google Chrome headless browser testing facility and xvfb on a Virtual Machine. I am running the command "npm run test:xvfb" to achieve this. But ...
- 21
4
votes
3
answers
6k
views
trying to get --listen-tcp on xvfb-run
I am trying to following these instructions http://afterdesign.net/2016/02/07/recording-headless-selenium-tests-to-mp4.html for recording selenium tests.
However, when I try to connect to xvfb with ...
- 603
1
vote
1
answer
4k
views
XServer: how to check who/what uses display:N
I have a strange situation. These are my commands and their outputs:
user@machine:~/Temp$ Xvfb :10 -screen 0 1024x768x16
_XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed
...
- 1,005
1
vote
1
answer
1k
views
Xvfb: is some delay required running some program in new session?
I have a script.sh which I start in Xvfb new session this way:
Xvfb :10 -screen 0 1000x200x24 & export DISPLAY=":10" && script.sh
In script.sh I run one c++ program and one java program. ...
- 1,005
0
votes
1
answer
607
views
xpra not working after upgrading debian
Once upon a time, I installed xpra and have been using it without problem.
Then my harddrive crashed. I installed a new identical one, and restored a dd image of 6 months ago (before I had installed ...
- 921
3
votes
1
answer
8k
views
How to connect to X app via VNC which was by xvfb-run?
When I run Xvfb server directly, x11vnc can attach to the display fine as per Wikipedia page.
However I'd like to achieve the same by running the X app using xvfb-run.
Here is my attempt (to run ...
- 21.5k
2
votes
1
answer
4k
views
X virtual framebuffer screen is 1024x9216 instead of 1024x768
I've run the X virtual framebuffer server on Ubuntu Linux which I'd like to access its screen via VNC.
Here are my steps:
Xvfb :1.0 -screen 0 1024x768x16 &
Setup password by: x11vnc -storepasswd....
- 21.5k
2
votes
1
answer
4k
views
Xvfb with 2 screens and Two x11vnc servers (one for each screen): only the first one work
I'm using CentOS 7 and x11vnc version 0.9.13 (release 11.el7) for arch x86_64.
I create Xvfb with two screens (:10.0 and :10.1) like this:
sudo Xvfb :10 -screen 0 1366x768x24+32 -screen 1 ...
- 131
2
votes
1
answer
17k
views
Xvfb -screen --> (EE) Cannot establish any listening sockets
I'm trying to run a gameserver for the game "Insurgency: Modern Infantry Combat" on a VPS rented from Kimsufi running Ubuntu 15.10.
I've had prior experience messing around with Wine and Xvfb but ...
user193839
9
votes
3
answers
14k
views
How to run Xvfb without root?
Desired result on a server without root:
1) Run Xvfb without input devices, or
2) Just get Xvfb to run
Background:
I have two machines both having nearly identical builds of CentOS. One machine ...
- 607
5
votes
1
answer
5k
views
GLX doesn't work using xvfb-run
I'm on Ubuntu 14.04, and using it through ssh, which means I don't have local GUI for it.
I need to run some command that requires GLX, but things aren't going well.
Xvfb :80 -screen 0 1400x900x24 -...
- 274
15
votes
2
answers
3k
views
How to poll for Xvfb to be ready?
The Travis CI documentation says to run sleep 3 after starting xvfb to "give [it] some time to start". I couldn't find any reference to this delay in the man page. Is this cargo cult programming? If ...
- 52.1k
3
votes
0
answers
321
views
Error encounterd while running Firefox in Xvfb: "Xlib: extension "RANDR" missing on display ":99"." [duplicate]
I'm trying to run Firefox in Headless mode in a CentOS Linux release 7.0.1406 (Core)
I have already have firefox-45.3.0-1.el7.centos.x86_64 installed.
I have run the following commands for the ...
- 31
3
votes
1
answer
2k
views
Strange rendering issues when using xvfb-run
I have an app running remotely on a beaglebone, written in wxPython. I want to run the app inside of a virtual frame buffer, using Xvfb, and access it remotely using a VNC.
It may also be pertinent ...
- 364
4
votes
2
answers
7k
views
Changing Xvfb frame buffer resolution while it's running
I run Xvfb with command:
Xvfb :1 -screen 0 100x100x16 -fbdir /tmp
And it's working fine. I can connect via VNC, and now under /tmp directory I have Xvfb_screen0 binary file.
I thought it will act ...
- 155
2
votes
0
answers
897
views
Xvfb stuck at "built-in extension GLX" on Amazon Linux
I started to use AWS EC2 with Amazon Linux a few days ago.
I am running java with selenium webdriver over firefox to get some data from websites, and it works well when running on my windows computer.
...
- 121
8
votes
3
answers
26k
views
Howto terminate xvfb-run properly
In order to perform some JavaScript unit tests with karma inside a docker container (based on ubuntu 14.04) I'm starting firefox in the container using a karma-script-launcher with xvfb-run. The start ...
- 423
0
votes
2
answers
2k
views
How to take a screenshot of the X virtual framebuffer display?
I would like to take a screenshot from Xvfb display server.
I already tried:
xwd -root -silent -out screen.xwd
but I can't read this file and I couldn't find any software (via Homebrew) which can ...
- 21.5k