GNU bug report logs - #40411
Auto-login prevents GDM from starting

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Pierre Neidhardt <mail <at> ambrevar.xyz>
To: bug-guix <at> gnu.org
Subject: Auto-login prevents GDM from starting
Date: Fri, 03 Apr 2020 18:54:04 +0200

[Message part 1 (text/plain, inline)]

With the following GDM service:

--8<---------------cut here---------------start------------->8---
(gdm-service-type
 (gdm-configuration
  (default-user "doe")
  (auto-login? #t)))
--8<---------------cut here---------------end--------------->8---

GDM fails to start (nothing happens, nothing is printed in the TTY).

If I set auto-login? to #f, GDM starts properly (but of course does not
log me in automatically).

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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Message #8 received at 40411 <at> debbugs.gnu.org (full text, mbox):

From: Pierre Neidhardt <mail <at> ambrevar.xyz>
To: 40411 <at> debbugs.gnu.org
Subject: Re: bug#40411: Acknowledgement (Auto-login prevents GDM from starting)
Date: Fri, 03 Apr 2020 18:58:42 +0200

[Message part 1 (text/plain, inline)]

Oops, I did look for similar issues and somehow I missed
https://issues.guix.info/issue/35674
which seems to be very similar to what Alex is experiencing.

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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Message #11 received at 40411 <at> debbugs.gnu.org (full text, mbox):

From: Leo Famulari <leo <at> famulari.name>
To: Pierre Neidhardt <mail <at> ambrevar.xyz>
Cc: 40411 <at> debbugs.gnu.org
Subject: Re: bug#40411: Acknowledgement (Auto-login prevents GDM from starting)
Date: Fri, 3 Apr 2020 13:22:25 -0400

On Fri, Apr 03, 2020 at 06:58:42PM +0200, Pierre Neidhardt wrote:
> Oops, I did look for similar issues and somehow I missed
> https://issues.guix.info/issue/35674
> which seems to be very similar to what Alex is experiencing.

If appropriate, please merge the bugs :)

Message #14 received at 40411 <at> debbugs.gnu.org (full text, mbox):

From: Pierre Neidhardt <mail <at> ambrevar.xyz>
To: Leo Famulari <leo <at> famulari.name>
Cc: 40411 <at> debbugs.gnu.org
Subject: Re: bug#40411: Acknowledgement (Auto-login prevents GDM from starting)
Date: Fri, 03 Apr 2020 20:26:34 +0200

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Done.

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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Message #19 received at 40411 <at> debbugs.gnu.org (full text, mbox):

From: Alex Griffin <a <at> ajgrf.com>
To: "guix-patches <at> gnu.org" <guix-patches <at> gnu.org>
Cc: "35674 <at> debbugs.gnu.org" <35674 <at> debbugs.gnu.org>,
 "40411 <at> debbugs.gnu.org" <40411 <at> debbugs.gnu.org>
Subject: [PATCH] services: Fix gdm-autologin pam service.
Date: Sun, 14 Jun 2020 23:24:56 +0000

[Message part 1 (text/plain, inline)]

This patch fixes GDM's auto-login feature.

See the discussions in #35674 and #40411. It works for me, but I don't want to just commit it because I don't really understand PAM. (Then again, who does?)

--
Alex Griffin

[0001-services-Fix-gdm-autologin-pam-service.patch (text/x-patch, attachment)]

Message #22 received at 40411 <at> debbugs.gnu.org (full text, mbox):

From: Marius Bakke <marius <at> gnu.org>
To: Alex Griffin <a <at> ajgrf.com>, 41863 <at> debbugs.gnu.org
Cc: "35674 <at> debbugs.gnu.org" <35674 <at> debbugs.gnu.org>,
 "40411 <at> debbugs.gnu.org" <40411 <at> debbugs.gnu.org>
Subject: Re: [bug#41863] [PATCH] services: Fix gdm-autologin pam service.
Date: Fri, 02 Oct 2020 19:54:28 +0200

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Alex Griffin via Guix-patches via <guix-patches <at> gnu.org> writes:

> This patch fixes GDM's auto-login feature.
>
> See the discussions in #35674 and #40411. It works for me, but I don't want to just commit it because I don't really understand PAM. (Then again, who does?)

[...]

> @@ -925,7 +926,7 @@ the GNOME desktop environment.")
>      (inherit (unix-pam-service "gdm-autologin"
>                                 #:login-uid? #t))
>      (auth (list (pam-entry
> -                 (control "[success=ok default=1]")
> +                 (control "optional")

This is one of the alternatives Timothy proposed in #35674 back in May
last year(!).  As long as GDM still rejects wrong or blank passwords, I
think it is good to go.

It would be good to get it in 1.2.0.  :-)

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