Re: VMM VM - 'dummy' based driver-based X11 server inside, not possible?

On March 29, 2018 11:36 PM, Mike Larkin <mlarkin@azathoth.net> wrote:
..
> > (Thread crossreferenced with
> > https://marc.info/?t=152230713300003&r=1&w=2 .)
> >
> > Thanks for reporting that you got X dummy working, though only on
> > baremetal but not in a VMM, the latter crashing at X start with
> > message "(EE) xf86OpenConsole: No console driver found".
..
> what do you hope to achieve here?

Xvfb + X11vnc gives you a fixed-resolution graphical remote terminal.

My hope is that dummy X + X11vnc will give the same but allow dynamic
resizing of the X framebuffer upon request to do so via Xrandr from a
VNC resize command.

This protocol interaction is what happens when you resize a VNC client
window.

This will be practical when you have one X/VNC server that you will
access from different computers with different screens and screen
resolutions, or you just benefit of dynamically resizing the X
framebuffer without needing to restart all your running X programs.

With Xvfb you'd be inclined to have some different launch scripts for
your different monitors and usecases, e.g. 1400x1000px, 2500x1500px and
800x600px variants for surfing web, checking top, checking network
stats etc. . With dummy X you can just resize the same framebuffer as
you go along depending on needs from time to time.