GNU bug report logs - #29211
XScreenSaver does not recognise password

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

From: Diego Nicola Barbato <dnbarbato <at> posteo.de>
To: bug-guix <at> gnu.org
Subject: XScreenSaver does not recognise password
Date: Wed, 08 Nov 2017 14:28:02 +0100

Hello Guix,

When I lock my screen with XScreenSaver by first running
`xscreensaver &' and then `xscreensaver-command --lock' I am unable to
unlock the screen by entering my password.  This happens even though I
have added `(screen-locker-service xscreensaver "xscreensaver")' to my
services in my `config.scm'.
I run StumpWM on GuixSD.

Greetings,

Diego

P.S. I am not sure whether this is relevant but this bug seems to
coincide with a change in the time displayed on the unlock dialog:  It
no longer displays the wrong time (two hours behind the output of
`date') and the format has changed from a 24h format to one using AM and
PM.

Message #8 received at 29211 <at> debbugs.gnu.org (full text, mbox):

From: ludo <at> gnu.org (Ludovic Courtès)
To: Diego Nicola Barbato <dnbarbato <at> posteo.de>
Cc: 29211 <at> debbugs.gnu.org
Subject: Re: bug#29211: XScreenSaver does not recognise password
Date: Wed, 08 Nov 2017 15:05:19 +0100

Hi Diego,

Diego Nicola Barbato <dnbarbato <at> posteo.de> skribis:

> When I lock my screen with XScreenSaver by first running
> `xscreensaver &' and then `xscreensaver-command --lock' I am unable to
> unlock the screen by entering my password.  This happens even though I
> have added `(screen-locker-service xscreensaver "xscreensaver")' to my
> services in my `config.scm'.
> I run StumpWM on GuixSD.
>
> Greetings,
>
> Diego
>
> P.S. I am not sure whether this is relevant but this bug seems to
> coincide with a change in the time displayed on the unlock dialog:  It
> no longer displays the wrong time (two hours behind the output of
> `date') and the format has changed from a 24h format to one using AM and
> PM.

To me that suggests ‘xscreensaver’ is taken from your profile (or the
global profile) instead of being taken from
/run/setuid-programs/xscreensaver.

What does “type -P xscreensaver” display?

Thanks,
Ludo’.

Message #11 received at 29211 <at> debbugs.gnu.org (full text, mbox):

From: Diego Nicola Barbato <dnbarbato <at> posteo.de>
To: ludo <at> gnu.org (Ludovic Courtès)
Cc: 29211 <at> debbugs.gnu.org
Subject: Re: bug#29211: XScreenSaver does not recognise password
Date: Wed, 08 Nov 2017 16:16:05 +0100

Hello Ludo,

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

> Hi Diego,
>
> Diego Nicola Barbato <dnbarbato <at> posteo.de> skribis:
>
>> When I lock my screen with XScreenSaver by first running
>> `xscreensaver &' and then `xscreensaver-command --lock' I am unable to
>> unlock the screen by entering my password.  This happens even though I
>> have added `(screen-locker-service xscreensaver "xscreensaver")' to my
>> services in my `config.scm'.
>> I run StumpWM on GuixSD.
>>
>> Greetings,
>>
>> Diego
>>
>> P.S. I am not sure whether this is relevant but this bug seems to
>> coincide with a change in the time displayed on the unlock dialog:  It
>> no longer displays the wrong time (two hours behind the output of
>> `date') and the format has changed from a 24h format to one using AM and
>> PM.
>
> To me that suggests ‘xscreensaver’ is taken from your profile (or the
> global profile) instead of being taken from
> /run/setuid-programs/xscreensaver.
>
> What does “type -P xscreensaver” display?
>
> Thanks,
> Ludo’.

You are right. `type -P xscreensaver' returns
`/home/diego/.guix-profile/bin/xscreensaver'.  And if i run
`/run/setuid-programs/xscreensaver &' instead of `xscreensaver &'
everything works as expected. 

Apparently my setup should never have worked in the first place.  The
fact that it did until about two weeks ago led me to think this was a
bug.

Thanks,

Diego

Message #16 received at 29211-done <at> debbugs.gnu.org (full text, mbox):

From: Diego Nicola Barbato <dnbarbato <at> posteo.de>
To: 29211-done <at> debbugs.gnu.org
Subject: Re: bug#29211: XScreenSaver does not recognise password
Date: Wed, 08 Nov 2017 17:21:39 +0100

Apparently this is not a bug.

Message #19 received at 29211 <at> debbugs.gnu.org (full text, mbox):

From: ludo <at> gnu.org (Ludovic Courtès)
To: Diego Nicola Barbato <dnbarbato <at> posteo.de>
Cc: 29211 <at> debbugs.gnu.org
Subject: Re: bug#29211: XScreenSaver does not recognise password
Date: Wed, 08 Nov 2017 21:35:05 +0100

Diego Nicola Barbato <dnbarbato <at> posteo.de> skribis:

> You are right. `type -P xscreensaver' returns
> `/home/diego/.guix-profile/bin/xscreensaver'.  And if i run
> `/run/setuid-programs/xscreensaver &' instead of `xscreensaver &'
> everything works as expected. 
>
> Apparently my setup should never have worked in the first place.  The
> fact that it did until about two weeks ago led me to think this was a
> bug.

Heheh.  So all you have to do is ‘guix package -r xscreensaver’.

Thanks for confirming!

Ludo’.

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