Bug#1028370: Connection to server failed

[Stéphane Glondu]

Package: clusterssh
Version: 4.16-4
Severity: grave

Dear Maintainer,

Today, cssh does not work:

$ cssh a b c d
Connection to server failed -- (version 11.0)
Authorization required, but no authorization protocol specified
at /usr/share/perl5/App/ClusterSSH/Window/Tk.pm line 57.

I'm pretty sure it was working 3 weeks ago or so. However, with 4.16-3
I still get the issue.

Cheers,

--
Stéphane

-- System Information:
Debian Release: bookworm/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.0.0-6-amd64 (SMP w/4 CPU threads; PREEMPT)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages clusterssh depends on:
ii libexception-class-perl 1.45-1
ii libtry-tiny-perl 0.31-2
ii libx11-protocol-other-perl 31-1
ii libx11-protocol-perl 0.56-9
ii openssh-client 1:9.1p1-1
ii perl 5.36.0-6
ii perl-tk 1:804.036-1+b1
ii xterm 377-1

clusterssh recommends no packages.

clusterssh suggests no packages.

-- no debconf information

[Stéphane Glondu]

Le 10/01/2023 à 07:56, Stéphane Glondu a écrit :
> Today, cssh does not work:
>
> $ cssh a b c d
> Connection to server failed -- (version 11.0)
> Authorization required, but no authorization protocol specified
> at /usr/share/perl5/App/ClusterSSH/Window/Tk.pm line 57.
>
> I'm pretty sure it was working 3 weeks ago or so. However, with 4.16-3
> I still get the issue.

More info: the error was with the default GNOME (on Wayland) session.
With GNOME on Xorg, cssh works. I also tried, xterm itself works with
Wayland session.


Cheers,

--
Stéphane

[tony mancill]

Hi Stéphane,

Thank you for reporting this issue. I'm believe this is going to be
reassigned to libx11-protocol-perl (or another dependency), since the
examples in that package now break with the exact same message - for
example:

$ perl /usr/share/doc/libx11-protocol-perl/examples/render-test.pl

Connection to server failed -- (version 11.0)
Authorization required, but no authorization protocol specified

at /usr/share/doc/libx11-protocol-perl/examples/render-test.pl line 8.

It's interesting that I don't see updates to Wayland, GNOME, or xauth
around this time that explain the change.

As a work-around, until we track down what has changed and how to fix
it, this gets cssh and the examples in libx11-protocol-perl working
again on my system, which is also GNOME on Wayland:

$ xhost +SI:localuser:$(whoami)

Thanks,
tony

[gregor herrmann]

On Sun, 12 Feb 2023 14:29:46 -0800, tony mancill wrote:

> On Tue, Jan 10, 2023 at 08:10:08AM +0100, Stéphane Glondu wrote:
> > More info: the error was with the default GNOME (on Wayland) session. With
> > GNOME on Xorg, cssh works. I also tried, xterm itself works with Wayland
> > session.
>
> Thank you for reporting this issue. I'm believe this is going to be
> reassigned to libx11-protocol-perl (or another dependency), since the
> examples in that package now break with the exact same message - for
> example:
>
> $ perl /usr/share/doc/libx11-protocol-perl/examples/render-test.pl
> Connection to server failed -- (version 11.0)
> Authorization required, but no authorization protocol specified
> at /usr/share/doc/libx11-protocol-perl/examples/render-test.pl line 8.

FWIW, this still works for me … But I'm using awesome and X11, not
GNOME / Wayland.


Line 8 of /usr/share/doc/libx11-protocol-perl/examples/render-test.pl
is just

my $X = new X11::Protocol;

X11::Protocol's constructor can do something about authorization; cf.
also X11::Auth. -- But then, I have no idea how this all interacts
with Wayland.


Cheers,
gregor

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