raspberry PI - no X11

[Shlomo Solomon]

Thanks for the detailed explanation (in case this happens again). As I
already wrote, I chose the "easy ???" way and re-installed and
everything is back to normal.

On Tue, 6 Feb 2018 20:06:14 +0200
Lior Okman <lior at okman.name> wrote:

> Hi,
> 
> Sorry, I just saw the thread right now.
> 
> If it happens again:
> 
> Your $HOME/.Xauthority file contains the authentication key that is
> used to authenticate your X sessions. This file is manipulated with
> the xauth command. When you ssh with the -X switch, it is supposed to
> add an entry to your .Xauthority file to allow you to connect to the
> X server - but it sometimes doesn't work.
> 
> Best fix is to use xauth to delete the bad key and enter the correct
> one - use xauth on your local host to find the correct value, and
> then use xauth on the remote host to delete the bad key and add the
> correct key.
> 
> Easier fix is to simply delete the .Xauthority file on the remote
> host and try to login again and let ssh recreate it.
> 
> You could also copy the .Xauthority file from your main host to the
> pi.
> 
> :-) Or you could format the machine and hope for the best :-)
> 
> --
> Regards,
> Lior
> 
> On Tue, Feb 6, 2018 at 11:35 AM, Shlomo Solomon
> <shlomo.solomon at gmail.com> wrote:
> 
> > I finally gave up and did a re-installed of Raspbian and everything
> > is back to normal. Since I do regular backups of /home and /etc, I
> > got everything back to normal with no major problems.
> >
> >
> > On Tue, 6 Feb 2018 10:20:12 +0100
> > Tzafrir Cohen <tzafrir at cohens.org.il> wrote:
> >
> > > On Sun, Feb 04, 2018 at 11:54:01AM +0200, Shlomo Solomon wrote:
> > > > I really don't know how I screwed this up, but I've been
> > > > "playing" with this for hours with no success.
> > > >
> > > > I have a raspberry PI file server. I rarely use the GUI and
> > > > when I do it's usually over VNC (I use KRDC) or with ssh -X.
> > > >
> > > > As of today:
> > > > 1 - KRDC won't connect
> > > >
> > > > 2 - ssh -X pi at pi   (pi is defined in /etc/hosts) gives only a
> > > > console login and says:
> > > > X11 connection rejected because of wrong authentication.
> > > >
> > >
> > > What are the values of DISPLAY and XAUTHORITY when you connect via
> > > ssh?
> > >
> > > > 3 - I connected a monitor directly to the PI and it will not
> > > > accept the pi password when I try to login to X11 - but DOES
> > > > accept the root password. So X11 is OK, but only for root - not
> > > > the regular pi user.
> > >
> > > I must be missing something, but: how are the two related? In (2)
> > > you try to authorize X11 programs on the pi to connect to an X
> > > server running on your PC.
> > >
> > > In (3) you run an X server on the pi (and X11 clients running on
> > > the pi that should connect to it).
> > >
> >
> >
> >
> > --
> > Shlomo Solomon
> > http://the-solomons.net
> > Claws Mail 3.11.1 - KDE 4.14.30 - Dolphin 4.14.3 - LINUX Mageia 5
> >
> > _______________________________________________
> > Linux-il mailing list
> > Linux-il at cs.huji.ac.il
> > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
> >



-- 
Shlomo Solomon
http://the-solomons.net
Claws Mail 3.11.1 - KDE 4.14.30 - Dolphin 4.14.3 - LINUX Mageia 5