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Devuan bug report logs - #937
elogind: SwayWM fails to launch from vTTY: Could not take device: No such file or directory

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Package: src:elogind; Maintainer for src:elogind is Mark Hindley <mark@hindley.org.uk>;

Reported by: Nathan Schulte <public@desmas.net>

Date: Fri, 23 Jan 2026 19:26:02 UTC

Severity: grave

Tags: patch

Found in version elogind/255.17-4

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Date: Sun, 25 Jan 2026 18:44:34 +0000
From: Andrew Bower <andrew@bower.uk>
To: public@desmas.net
Cc: Mark Hindley <mark@hindley.org.uk>, 937@bugs.devuan.org
Subject: Re: elogind: SwayWM fails to launch from vTTY: Could not take
 device: No such file or directory
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On Sun, Jan 25, 2026 at 06:21:25PM +0000, public@desmas.net wrote:
> I've built elogind packages with log-trace: true and debug-extra: ['elogind'], and it provides more detail, e.g.:
> 
> > elogind[13734]: Got message type=method_call sender=:1.30 destination=org.freedesktop.login1 path=/org/freedesktop/login1/session/_38 interface=org.freedesktop.login1.Session member=TakeDevice  cookie=10 reply_cookie=0 signature=uu error-name=n/a error-message=n/a
> > elogind[13734]: Failed to send notify message to '/run/.s-s-d-notify.49UVq6/notify': No such file or directory
> > elogind[13734]: Sent message type=signal sender=n/a destination=:1.30 path=/org/freedesktop/login1/session/_38 interface=org.freedesktop.login1.Session member=PauseDevice cookie=76 reply_cookie=0 signature=uus error-name=n/a error-message=n/a
> > elogind[13734]: Sent message type=error sender=n/a destination=:1.30 path=n/a interface=n/a member=n/a cookie=77 reply_cookie=10 signature=s error-name=org.freedesktop.DBus.Error.FileNotFound error-message=No such file or directory
> > elogind[13734]: Failed to process message type=method_call sender=:1.30 destination=org.freedesktop.login1 path=/org/freedesktop/login1/session/_38 interface=org.freedesktop.login1.Session member=TakeDevice cookie=10 reply_cookie=0 signature=uu error-name=n/a error-message=n/a: No such file or directory

Oh this is interesting.

Since the initial readiness exchange seems to work OK, I wonder if
what's happening is elogind continues to send information over this
channel through its lifetime despite the fact it is now closed, and I
wonder if it then takes some wrong code paths which prevents it from
performing its main function properly.

It might be worth it looking at the places that elogind tries to signal
a notification and make sure failure to signal on a closed channel is
ignored and doesn't cause a broader error.

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Last modified: Mon Jan 26 17:37:29 2026;