The most commonly overlooked thing when first running it is the format of the display number. It needs a colon (:) in front of it (i.e. ":99"). 99 also happens to be the default display number. If you use the auto-assignment feature, it will count up from there when creating new ones. The docs should help you with the rest.
I usually avoid configuring xvfb and just use the
xvfb-runtool to launch applications into xvfb.Xvfb itself does not require configuration. It is a command line application that takes in just a few arguments.
See the man pages for a full description
The most commonly overlooked thing when first running it is the format of the display number. It needs a colon (:) in front of it (i.e. ":99"). 99 also happens to be the default display number. If you use the auto-assignment feature, it will count up from there when creating new ones. The docs should help you with the rest.