VirtualBox & X11: Guest console does not display remotey anynmore

[Peter Ross]

On Tue, 11 Nov 2014, Peter Ross wrote:

> since yesterday I have a weird problem. I cannot display VirtualBox
> _guest_ consoles remotely anymore (the GUI for configuration works).
>
> It worked two weeks ago and I am not aware of any changes.
>
> I am running Virtualbox headless on a server but use the GUI for installs
> when needed. I forward ssh (-X) and use "su -m" to keep the DISPLAY
> environment variable(DISPLAY=localhost:10.0) and xauth.
>
> Two weeks ago I did just that,
>
> 1. started "VirtualBox",
> 2. created a VM and a disk,
> 3. attached an ISO disk
> 4. pressed start and the "BIOS" appeared
>
> Yesterday it all goes up to step 3- just 4 does not work. I get an error
> instead of the BIOS screen, and on the server I get:
>
> X11 connection rejected because of wrong authentication.

I found a workaround:

VBoxSDL --startvm SageConfig

This works and I can install my beloved Windows 7;-)

Weird.. as said, the other way worked two weeks ago and nothing changed 
(I believe)

Regards
Peter