Xvfb failed start error

Question

I have Ubuntu 11.04 I am trying to install Xvfb and CutyCapt in order to take a snapshot of webpage I followed a instruction https://github.com/jaequery/cutycapt-installer-scri

Answer 1

I was getting this error "xvfb-run: error: Xvfb failed to start" on Ubuntu 14.04, where previously my script had run without problems on Ubuntu 12.04.

My scripts were running calling xvfb-run multiple times, but I was seeing fails due to the error "Server is already active for display 99"

It seemed that the Xvfb wasn't ending when the xvfb-run command returned.

My solution was to use "xvfb-run -a [mycommand]" so xvfb uses another display if 99 is in use.