Xvfb (virtual framebuffer X server)

Xvfb is the X virtual framebuffer server for headless X11 sessions. It runs a full X11 server with no display hardware, drawing into an off-screen framebuffer.

Use it for headless/debug X11 sessions or software-only bring-up. The public Xios app display path uses xios-server instead.

• xorg-server 1.20.11 virtual framebuffer
• Registers /var/jb/usr/bin/Xvfb
• Pair with a window manager (fluxbox), xterm, and the x11-fonts-sf package