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Re: Partition unreadable [was: Re: Debian Stretch broken !]

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On Thu, Apr 09, 2020 at 04:32:10PM +0200, Bernard wrote:
> # tasksel
> 
> a graphical window opens and proposes a choice between Debian Desktop
> environment, GNOME, KDE, xfce, MATE... I alternatively chose most of these
> including Gnome Desktop env, GNOME, KDE, xfce, MATE.

So we don't even known which one you're currently trying to use.  That
makes debugging a lot harder, don't you think?

If you're trying to debug X, start simple.  Install a traditional window
manager, and just name it on the startx command to override the system
defaults.

> $ startx
> 
> invariably leads to
> 
> .......................
> connexion to X server lost

At that point, you look for errors in ~/.xsession-errors or, more usefully,
in the X log file.  Which, for stretch-and-later, on most hardware, will
be in ~/.local/share/xorg/.  Or if for some reason your X server still runs
as root, it might be in the /var/log/ directory.

> Another time, I attempted to run
> 
> # evolution
> 
> unable to init server, connexion refused
> failed to initiate gtk+  could not open display
> 
> Does that mean that I should re-install the gtk library ?

No, it means you tried to run it outside of an X session.  Obviously
that's not going to work.

Start with the basics.  Can X run *at all*?

Make sure xterm is installed, and try

startx xterm

That should give you the barest possible X session.  If it works, you'll
have a mostly empty screen, but with an xterm in the upper left corner.
You'll be able to move the mouse pointer around, and if the mouse cursor
is inside the xterm window area, you'll be able to type in the terminal.
Do that, and type "exit" or Ctrl-D in the xterm to get out.

If it DOESN'T work, try to figure out why, by reading the X log file.

Also useful would be:

Which video chipset is in use?  lspci -nn

Which firmware files are loaded, and which are missing?
dmesg | grep -i firmware

And, possibly, if you can, the *important* lines from the X log file.
But figuring out which lines are important, out of that gargantuan
log file, is an art form.

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Thread

Debian Stretch broken ! Bernard <bdebreil@free.fr> - 2020-04-03 20:50 +0200
  Re: Debian Stretch broken ! Kent West <westk@acu.edu> - 2020-04-03 21:10 +0200
    Re: Debian Stretch broken ! Bernard <bdebreil@free.fr> - 2020-04-04 01:20 +0200
      Partition unreadable [was: Re: Debian Stretch broken !] Andrei POPESCU <andreimpopescu@gmail.com> - 2020-04-04 08:30 +0200
        Re: Partition unreadable [was: Re: Debian Stretch broken !] Bernard <bdebreil@free.fr> - 2020-04-04 11:10 +0200
          Re: Partition unreadable Felix Miata <mrmazda@earthlink.net> - 2020-04-04 12:00 +0200
          Re: Partition unreadable [was: Re: Debian Stretch broken !] Andrei POPESCU <andreimpopescu@gmail.com> - 2020-04-04 18:20 +0200
            Re: Partition unreadable [was: Re: Debian Stretch broken !] Bernard <bdebreil@free.fr> - 2020-04-04 20:00 +0200
              Re: Partition unreadable [was: Re: Debian Stretch broken !] David Christensen <dpchrist@holgerdanske.com> - 2020-04-05 01:10 +0200
              Re: Partition unreadable [was: Re: Debian Stretch broken !] Tom Dial <tddial@comcast.net> - 2020-04-05 03:50 +0200
                Re: Partition unreadable [was: Re: Debian Stretch broken !] Bernard <bdebreil@free.fr> - 2020-04-09 15:30 +0200
                Re: Partition unreadable [was: Re: Debian Stretch broken !] Greg Wooledge <wooledg@eeg.ccf.org> - 2020-04-09 15:40 +0200
                Re: Partition unreadable [was: Re: Debian Stretch broken !] Kent West <westk@acu.edu> - 2020-04-09 15:50 +0200
                Re: Partition unreadable [was: Re: Debian Stretch broken !] Bernard <bdebreil@free.fr> - 2020-04-09 16:40 +0200
                Re: Partition unreadable [was: Re: Debian Stretch broken !] Greg Wooledge <wooledg@eeg.ccf.org> - 2020-04-09 16:50 +0200
                Re: Partition unreadable [was: Re: Debian Stretch broken !] Bernard <bdebreil@free.fr> - 2020-04-09 20:10 +0200
                Re: Partition unreadable [was: Re: Debian Stretch broken !] Greg Wooledge <wooledg@eeg.ccf.org> - 2020-04-09 20:20 +0200
                [SOLVED]Re: Partition unreadable [was: Re: Debian Stretch broken  !] Bernard <bdebreil@free.fr> - 2020-04-10 14:50 +0200
                Re: Partition unreadable [was: Re: Debian Stretch broken !] Kent West <westk@acu.edu> - 2020-04-09 17:00 +0200
      Re: Debian Stretch broken ! Kent West <westk@acu.edu> - 2020-04-05 16:30 +0200
        Re: Debian Stretch broken ! Kent West <westk@acu.edu> - 2020-04-05 16:40 +0200
          Re: Debian Stretch broken ! Bernard <bdebreil@free.fr> - 2020-04-06 13:30 +0200
      Re: Debian Stretch broken ! Kent West <westk@acu.edu> - 2020-04-05 16:30 +0200
      Re: Debian Stretch broken ! Felix Miata <mrmazda@earthlink.net> - 2020-04-06 09:10 +0200
        Re: Debian Stretch broken ! Bernard <bdebreil@free.fr> - 2020-04-06 14:00 +0200
  Re: Debian Stretch broken ! Default User <hunguponcontent@gmail.com> - 2020-04-03 21:10 +0200
  Re: Debian Stretch broken ! Felix Miata <mrmazda@earthlink.net> - 2020-04-03 21:30 +0200
  Re: Debian Stretch broken ! Andrei POPESCU <andreimpopescu@gmail.com> - 2020-04-05 08:30 +0200
    Re: Debian Stretch broken ! Bernard <bdebreil@free.fr> - 2020-04-05 23:40 +0200
      Re: Debian Stretch broken ! Kent West <westk@acu.edu> - 2020-04-06 02:10 +0200
        Re: Debian Stretch broken ! Bernard <bdebreil@free.fr> - 2020-04-06 13:40 +0200
      Re: Debian Stretch broken ! Andrei POPESCU <andreimpopescu@gmail.com> - 2020-04-06 09:50 +0200
        Re: Debian Stretch broken ! Bernard <bdebreil@free.fr> - 2020-04-06 12:40 +0200
          Re: Debian Stretch broken ! Daniel Harris <mail.dharris@googlemail.com> - 2020-04-06 13:10 +0200
          Re: Debian Stretch broken ! Andrei POPESCU <andreimpopescu@gmail.com> - 2020-04-06 14:00 +0200
            Re: Debian Stretch broken ! Andrei POPESCU <andreimpopescu@gmail.com> - 2020-04-06 14:20 +0200
              Re: Debian Stretch broken ! Felix Miata <mrmazda@earthlink.net> - 2020-04-06 14:30 +0200

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