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

On Thu, Mar 29, 2018 at 11:03:21AM -0400, Tinker wrote:
> On February 16, 2018 4:35 PM, Jiri B <jirib@devio.us> wrote:
> > On Fri, Feb 16, 2018 at 12:19:44AM -0800, Mike Larkin wrote:
> >
> > > Xvfb + x11vnc worked fine in the test I just did.
> >
> > Yes, it does, thanks for confirmation.
> >
> > I was curious why X11 'dummy' mode does not if it should be
> > used in environments without graphical card for headless X11
> > server.
> >
> > Maybe it does not work as our xf86-video-dummy is old,
> >
> > https://github.com/freedesktop/xorg-xf86-video-dummy/commit/87249af5faf85c8d093e910c069faa4db0aee843#diff-67e997bcfdac55191033d57a16d1408a
> >
> > I'll stick to Xvfb for now and I'll give a try to build
> > newer xf86-video-dummy.
> >
> > Jiri
>
> (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".
>
> Do you have any idea what "No console driver found" here means, like,
> is it trying to open some hardware descriptor and it can't find it in
> VMM because VMM won't produce it while some PCI device on your
> baremetal would? Anyhow weird considering the X is supposed to not
> touch any hardware ("dummy" = graphics driver and "void" = mouse and
> keyboard drivers.)
>
> Did you get any idea about the detail cause?
>
> If any patch needs testing e.g. upgrade to latest
> https://github.com/freedesktop/xorg-xf86-video-dummy/ feel free to let
> me know.
>
> Thanks,
> Tinker

what do you hope to achieve here?