xscreensaver on GuixSD

xscreensaver on GuixSD

[Thomas Danckaert]

Hi,

using GuixSD, I've added xscreensaver to my system configuration, by 
adding the following to the list of services:

     (screen-locker-service xscreensaver)

this is enough to use xscreensaver (set up pam & make xscreensaver 
setuid), except for the fact that I have to start the  xscreensaver 
daemon manually after booting.

I'd like the xscreensaver daemon to start automatically.  Has anyone 
set this up on their system?  Do I need to define a custom service 
for this?  Suggestions welcome!

Thomas

Re: xscreensaver on GuixSD

[Ludovic Courtès]

Hello Thomas,

Thomas Danckaert <post@thomasdanckaert.be> skribis:

> I'd like the xscreensaver daemon to start automatically.  Has anyone
> set this up on their system?  Do I need to define a custom service for
> this?  Suggestions welcome!

I would start it from ~/.xsession, but perhaps there are fancier ways to
do that.

HTH,
Ludo’.

Re: xscreensaver on GuixSD

[Daniel Pimentel]

I use xlock with matrix mode. I puted in my ~.stumpwm:

(define-key *root-map* (kbd "Pause") "exec xlock -mode matrix")

---
Daniel Pimentel (d4n1)

On 2017-06-29 11:45, ludo@gnu.org wrote:
> Hello Thomas,
> 
> Thomas Danckaert <post@thomasdanckaert.be> skribis:
> 
>> I'd like the xscreensaver daemon to start automatically.  Has anyone
>> set this up on their system?  Do I need to define a custom service for
>> this?  Suggestions welcome!
> 
> I would start it from ~/.xsession, but perhaps there are fancier ways 
> to
> do that.
> 
> HTH,
> Ludo’.

Re: xscreensaver on GuixSD

[Thomas Danckaert]

[-- Attachment #1: Type: Text/Plain, Size: 767 bytes --]

From: ludo@gnu.org (Ludovic Courtès)
Subject: Re: xscreensaver on GuixSD
Date: Thu, 29 Jun 2017 16:45:14 +0200

> Thomas Danckaert <post@thomasdanckaert.be> skribis:
>
>> I'd like the xscreensaver daemon to start automatically.  Has 
>> anyone
>> set this up on their system?  Do I need to define a custom service 
>> for
>> this?  Suggestions welcome!
>
> I would start it from ~/.xsession, but perhaps there are fancier 
> ways to
> do that.

Strangely, after creating a ~/.xsession file, I wasn't able to log in 
to my gnome session anymore (though I didn't investigate this further 
and just deleted ~/.xsession again).  What did work was to create a 
.desktop file in ~/.config/autostart.  I've attached it here for 
future reference ;-)


[-- Attachment #2: xscreensaver.desktop --]
[-- Type: Text/Plain, Size: 78 bytes --]

[Desktop Entry]
Name=Screensaver
Type=Application
Exec=xscreensaver -nosplash

Re: xscreensaver on GuixSD

[Ludovic Courtès]

Thomas Danckaert <post@thomasdanckaert.be> skribis:

> From: ludo@gnu.org (Ludovic Courtès)
> Subject: Re: xscreensaver on GuixSD
> Date: Thu, 29 Jun 2017 16:45:14 +0200
>
>> Thomas Danckaert <post@thomasdanckaert.be> skribis:
>>
>>> I'd like the xscreensaver daemon to start automatically.  Has
>>> anyone
>>> set this up on their system?  Do I need to define a custom service
>>> for
>>> this?  Suggestions welcome!
>>
>> I would start it from ~/.xsession, but perhaps there are fancier
>> ways to
>> do that.
>
> Strangely, after creating a ~/.xsession file, I wasn't able to log in
> to my gnome session anymore (though I didn't investigate this further
> and just deleted ~/.xsession again).

Maybe you forgot “chmod +x ~/.xsession”?

> What did work was to create a .desktop file in ~/.config/autostart.
> I've attached it here for future reference ;-)
>
> [Desktop Entry]
> Name=Screensaver
> Type=Application
> Exec=xscreensaver -nosplash

Interesting, I wonder what piece of software reads this file.  Maybe
xfce-session and gnome-session?

Thanks for the tip,
Ludo’.

Re: xscreensaver on GuixSD

[Thomas Danckaert]

From: ludo@gnu.org (Ludovic Courtès)
Subject: Re: xscreensaver on GuixSD
Date: Fri, 30 Jun 2017 14:47:47 +0200

>> Strangely, after creating a ~/.xsession file, I wasn't able to log 
>> in
>> to my gnome session anymore (though I didn't investigate this 
>> further
>> and just deleted ~/.xsession again).
>
> Maybe you forgot “chmod +x ~/.xsession”?

Obviously I did, case closed ;-)

>> What did work was to create a .desktop file in ~/.config/autostart.
>> I've attached it here for future reference ;-)
>>
>> [Desktop Entry]
>> Name=Screensaver
>> Type=Application
>> Exec=xscreensaver -nosplash
>
> Interesting, I wonder what piece of software reads this file.  Maybe
> xfce-session and gnome-session?

I don't know, but apparently it's a freedesktop standard.

https://standards.freedesktop.org/autostart-spec/autostart-spec-latest.html

Another method: if you create a .desktop file in one of the standard 
locations (don't know by heart where those are, some subdirectory of 
/etc, and there's a directory somewhere in $HOME, too, I think), the 
application will be available as a choice in the 'Startup 
Applications' menu of gnome-tweak-tool.

Thomas

Re: xscreensaver on GuixSD

[Chris Marusich]

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Thomas Danckaert <post@thomasdanckaert.be> writes:

> using GuixSD, I've added xscreensaver to my system configuration, by
> adding the following to the list of services:
>
>     (screen-locker-service xscreensaver)
>
> this is enough to use xscreensaver (set up pam & make xscreensaver
> setuid), except for the fact that I have to start the  xscreensaver
> daemon manually after booting.
>
> I'd like the xscreensaver daemon to start automatically.  Has anyone
> set this up on their system?  Do I need to define a custom service for
> this?  Suggestions welcome!
>
> Thomas

Is it not possible to set up a system-wide service for this?  I've never
taken the time to learn how screensavers or lock screens are
implemented.  I'm surprised that it requires one daemon per user (per
session?) to implement!

For the record, I haven't gotten the screen-saver/screen-locker working
in GuixSD.  Maybe by following your cue, I'll now be able to...!

-- 
Chris

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