8

I try to run Unit-Tests with Selenium running Firefox on my Ubuntu 14.04 Server. And I'm using Xvfb as described in this blog to simulate a virtual display to show Firefox in.

But Xvfg somehow doesn't load/work with RandR. Because whenever I try this: 

sudo Xvfb :10 -ac &
export DISPLAY=:10
firefox

I get an Xlib: extension "RandR" missing on display ":10"-Error.

I've also tried sudo Xvfb :10 -ac +extension RANDR, sudo Xvfb :10 -ac -extension RANDR and beacuse it supplies with "xrandr" also apt-get install x11-xserver-utils.

And my setup is a plain empty Ubuntu 14.04 Server with apt-get install xvfb firefox.

Can anyone please help me run Xvfb with or without RandR?

Itchy
  • 271

1 Answers1

9

After hours of struggling the error is still there. But finally I've figured out, that it's more like a warning and that Firefox actually starts. Moreover, my Selenium-Tests are running.

The actual problem was, I used an old Selenium Version and the newest Firefox. And they didn't work well together.

Itchy
  • 271