GNU bug report logs - #41207
accountsservice daemon lacks dbus interfaces

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: L  p R n  d n    <guix <at> lprndn.info>
Subject: bug#41207: closed (Re: bug#41207: accountsservice daemon lacks
 dbus interfaces)
Date: Sun, 30 Jul 2023 13:23:01 +0000

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

Your bug report

#41207: accountsservice daemon lacks dbus interfaces

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 41207 <at> debbugs.gnu.org.

-- 
41207: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=41207
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 41207-done <at> debbugs.gnu.org, L p R n d n <guix <at> lprndn.info>
Subject: Re: bug#41207: accountsservice daemon lacks dbus interfaces
Date: Sun, 30 Jul 2023 09:21:58 -0400

Hi,

Ludovic Courtès <ludo <at> gnu.org> writes:

> Hi,
>
> L  p R n  d n    <guix <at> lprndn.info> skribis:
>
>> Ludovic Courtès <ludo <at> gnu.org> writes:
>>
>>>>> L  p R n  d n    <guix <at> lprndn.info> skribis:
>> [...]
>>>> Not exactly, my understanding is that *accountsservice* doesn't find
>>>> 'org.freedesktop.Accounts.service' which is provided (and asked) by
>>>> lightdm. (I think the error comes from accountsservice)
>>>
>>> But see:
>>>
>>> $ (cd /tmp; tar xf $(guix build -S lightdm))
>>> $ grep -r "Error updating user" /tmp/lightdm-1.30.0/
>>> /tmp/lightdm-1.30.0/common/user-list.c: g_warning ("Error updating
>>> user %s: %s", priv->path, error->message);
>>> /tmp/lightdm-1.30.0/common/user-list.c: g_warning ("Error updating
>>> user %s: %s", priv->path, error->message);
>>> $ (cd /tmp; tar xf $(guix build -S accountsservice))
>>> $ find /tmp/accountsservice-0.6.50/ -name org.freedesktop\*.service.in
>>> /tmp/accountsservice-0.6.50/data/org.freedesktop.Accounts.service.in
>>> $ find $(guix build accountsservice) -name org.freedesktop\*.service
>>> /gnu/store/l9qyf0brhhq7mwcsyhjsh7k0d3ri3ay2-accountsservice-0.6.50/share/dbus-1/system-services/org.freedesktop.Accounts.service
>>>
>>> That’s why I think it’s lightdm (or dbus-daemon?) that fails to find the
>>> .service file.
>>>
>>> ‘accountsservice-service-type’ extends dbus, such that we have
>>> /etc/dbus-1/system-services/org.freedesktop.Accounts.service.  Do you
>>> see this as well?
>>
>> You're right! ;) And probably a dbus-daemon problem from what I
>> understand. But I really don't know what I'm talking about here...
>> However, just to clarify, I think it's not that it's not finding
>> dbus-1/system-services/org.freedesktop.Accounts.service but
>> dbus-1/interfaces/org.freedesktop.Accounts(.Users?).xml. In that case,
>> using #:env-variable for the dbus service might be a possibility.
>> Really, I have quite a lot of files in
>> /run/current-system/profile/share/dbus-1/interfaces but I don't know what are
>> their purpose... :/
>
> I think we’d need to look at the lightdm service to further debug this.
>
> It’s not upstream yet, right?

We now ship a working lightdm service.  I believe this bug report was
fixed in 6aeabba2baa11b4a0a778fc353e62d0fe2f6b5ec ("gnu: lightdm: Build
AccountsService files.").

Closing.

-- 
Thanks,
Maxim

[Message part 3 (message/rfc822, inline)]

From: L  p R n  d n    <guix <at> lprndn.info>
To: bug-guix <at> gnu.org
Subject: accountsservice daemon lacks dbus interfaces
Date: Tue, 12 May 2020 14:04:20 +0200

[Message part 4 (text/plain, inline)]

Hello,

The accountsservice service hasn't access to dbus' interfaces throwing
an error when they're needed.The problem, at least, appears with LightDM.
The error looks like:

WARNING: Error updating user /org/freedesktop/Accounts/User1000:
GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: No such interface
"org.freedesktop.DisplayManager.AccountsService"

For information, it already occured[0] and was resolved[1][2] in NixOS.

After testing, simply wrapping the accountsservice package with relevant
XDG_DATA_DIRS directories as done in the attached patch resolves the
issue. However, there might be a proper solution I'm not aware of.
Also the patch used in [2] doesn't seem to be needed in Guix.

Have a nice day,

L  p R n  d n

[0]: https://github.com/NixOS/nixpkgs/issues/45059
[1]: https://github.com/NixOS/nixpkgs/pull/45107
[2]: https://github.com/NixOS/nixpkgs/pull/72400

[0001-gnu-accountsservice-Wrap-program.patch (text/x-patch, attachment)]

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