GNU bug report logs - #55391
Multiple slim services

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

From: André A. Gomes <andremegafone <at> gmail.com>
To: bug-guix <at> gnu.org
Subject: Multiple slim services
Date: Thu, 12 May 2022 22:56:30 +0100

Hi Guix,

The manual (see (info "(guix) X Window")) mentions that it's possible to
add two slim services but it seems not to work.  When I tried to
reconfigure the system it gives the following error:

--8<---------------cut here---------------start------------->8---
guix system: error: more than one target service of type 'slim'
--8<---------------cut here---------------end--------------->8---

Thanks.


-- 
André A. Gomes
"You cannot even find the ruins..."

Message #8 received at 55391 <at> debbugs.gnu.org (full text, mbox):

From: Josselin Poiret <dev <at> jpoiret.xyz>
To: André A. Gomes <andremegafone <at> gmail.com>,
 55391 <at> debbugs.gnu.org
Subject: Re: bug#55391: Multiple slim services
Date: Fri, 13 May 2022 08:38:30 +0200

Hello André,

André A. Gomes <andremegafone <at> gmail.com> writes:

> Hi Guix,
>
> The manual (see (info "(guix) X Window")) mentions that it's possible to
> add two slim services but it seems not to work.  When I tried to
> reconfigure the system it gives the following error:
>
> --8<---------------cut here---------------start------------->8---
> guix system: error: more than one target service of type 'slim'
> --8<---------------cut here---------------end--------------->8---

If I understand the relevant code properly, this should happen only when
you try to extend a service type (eg. slim-service-type) with another
service, but you have multiple instances of the given service type, and
so guix system can't disambiguate between the two (it would be better if
you could manually specify that imho, but alas).  Could you post a
snippet of your config, especially the service part?

Best,
-- 
Josselin Poiret

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

From: André A. Gomes <andremegafone <at> gmail.com>
To: Josselin Poiret via Bug reports for GNU Guix <bug-guix <at> gnu.org>
Cc: Josselin Poiret <dev <at> jpoiret.xyz>, 55391 <at> debbugs.gnu.org
Subject: Re: bug#55391: Multiple slim services
Date: Mon, 16 May 2022 22:39:55 +0100

Josselin Poiret via Bug reports for GNU Guix <bug-guix <at> gnu.org> writes:

> Hello André,
>
> André A. Gomes <andremegafone <at> gmail.com> writes:
>
>> Hi Guix,
>>
>> The manual (see (info "(guix) X Window")) mentions that it's possible to
>> add two slim services but it seems not to work.  When I tried to
>> reconfigure the system it gives the following error:
>>
>> --8<---------------cut here---------------start------------->8---
>> guix system: error: more than one target service of type 'slim'
>> --8<---------------cut here---------------end--------------->8---
>
> If I understand the relevant code properly, this should happen only when
> you try to extend a service type (eg. slim-service-type) with another
> service, but you have multiple instances of the given service type, and
> so guix system can't disambiguate between the two (it would be better if
> you could manually specify that imho, but alas).  Could you post a
> snippet of your config, especially the service part?

Here it goes.  The manual states that you can have two slim services on
different ttys.  Am I misinterpreting something?  Thank you!

--8<---------------cut here---------------start------------->8---
(services (cons* (set-xorg-configuration (xorg-configuration
                                            (modules (list xf86-input-libinput
		                                                   xf86-input-evdev
                                                           xf86-input-wacom))
                                            (keyboard-layout keyboard-layout)
                                            (server-arguments
                                             ;; disable screen-saver timeout
                                             (append (list "-s" "0")
                                                     %default-xorg-server-arguments))
                                            (extra-config (list xorg-touchpad
                                                                xorg-monitor)))
                                           slim-service-type)
                   (service slim-service-type (slim-configuration (display ":0")
                                                                  (vt "vt7")))
                   ;; Doesn't work to add a 2nd service of the same type,
                   ;; contrary to what the docs say
                   ;; (service slim-service-type (slim-configuration (display ":0")
                   ;;                                                (vt "vt8")))
                   (modify-services %desktop-services
                     (guix-service-type
                      config => (guix-configuration
                                 (inherit config)
                                 (substitute-urls
                                  (append (list "https://substitutes.nonguix.org")
                                          %default-substitute-urls))
                                 (authorized-keys
                                  (append (list (plain-file "non-guix.pub"
                                                            nonguix-key))
                                          %default-authorized-guix-keys))))
                     (delete gdm-service-type)
                     (delete (screen-locker-service xlockmore "xlock")))))
--8<---------------cut here---------------end--------------->8---


-- 
André A. Gomes
"You cannot even find the ruins..."

Message #17 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Carlo Zancanaro <carlo <at> zancanaro.id.au>
To: André A. Gomes <andremegafone <at> gmail.com>
Cc: bug-guix <at> gnu.org, dev <at> jpoiret.xyz, 55391 <at> debbugs.gnu.org
Subject: Re: bug#55391: Multiple slim services
Date: Tue, 17 May 2022 09:29:43 +1000

Hi André,

On Mon, May 16 2022, André A. Gomes wrote:
> Here it goes.  The manual states that you can have two slim 
> services on different ttys.  Am I misinterpreting something? 
> Thank you!

I don't think you're misinterpreting anything, but Josselin is 
correct when they say

On Fri, May 13 2022, Josselin Poiret wrote:
> If I understand the relevant code properly, this should happen 
> only when you try to extend a service type (eg. 
> slim-service-type) with another service

In your case, you're using set-xorg-configuration which tries to 
extend your slim-service-type service. Unfortunately, you want to 
define two of them, which causes the extension mechanism to fail 
complaining about the ambiguity.

You should be able to fix this by adding the xorg-configuration 
directly into the slim service that you're defining, something 
like this:

   (cons* (service slim-service-type (slim-configuration
                                      (display ":0")
                                      (vt "vt7")
                                      (xorg-configuration
                                       (xorg-configuration
                                        (modules (list 
                                        xf86-input-libinput
    		                                        xf86-input-evdev
                                                       xf86-input-wacom))
                                        (keyboard-layout 
                                        keyboard-layout)
                                        (server-arguments
                                         ;; disable screen-saver 
                                         timeout
                                         (append (list "-s" "0")
                                                 %default-xorg-server-arguments))
                                        (extra-config (list 
                                        xorg-touchpad
                                                            xorg-monitor))))))
          (service slim-service-type (slim-configuration
                                      (display ":0")
                                      (vt "vt8")
                                      ;; I wasn't sure if you 
                                      wanted the same
                                      ;; xorg-configuration here, 
                                      so I left it out.
                                      ))
          (modify-services %desktop-services
            (delete gdm-service-type)
            (delete (screen-locker-service xlockmore "xlock"))))

I hope that helps,

Carlo

Message #23 received at submit <at> debbugs.gnu.org (full text, mbox):

From: André A. Gomes <andremegafone <at> gmail.com>
To: Carlo Zancanaro <carlo <at> zancanaro.id.au>
Cc: bug-guix <at> gnu.org, dev <at> jpoiret.xyz, 55391 <at> debbugs.gnu.org
Subject: Re: bug#55391: Multiple slim services
Date: Tue, 17 May 2022 16:31:28 +0100

Carlo Zancanaro <carlo <at> zancanaro.id.au> writes:

> Hi André,
>
> On Mon, May 16 2022, André A. Gomes wrote:
>> Here it goes.  The manual states that you can have two slim services
>> on different ttys.  Am I misinterpreting something? Thank you!
>
> I don't think you're misinterpreting anything, but Josselin is correct
> when they say
>
> On Fri, May 13 2022, Josselin Poiret wrote:
>> If I understand the relevant code properly, this should happen only
>> when you try to extend a service type (eg. slim-service-type) with
>> another service
>
> In your case, you're using set-xorg-configuration which tries to extend
> your slim-service-type service. Unfortunately, you want to define two of
> them, which causes the extension mechanism to fail complaining about the
> ambiguity.
>
> You should be able to fix this by adding the xorg-configuration directly
> into the slim service that you're defining, something like this:
>
>    (cons* (service slim-service-type (slim-configuration
>                                       (display ":0")
>                                       (vt "vt7")
>                                       (xorg-configuration
>                                        (xorg-configuration
>                                         (modules (list
>                                         xf86-input-libinput
>     		                                        xf86-input-evdev
>                                                        xf86-input-wacom))
>                                         (keyboard-layout
>                                         keyboard-layout)
>                                         (server-arguments
>                                          ;; disable screen-saver
>                                             timeout
>                                          (append (list "-s" "0")
>                                                  %default-xorg-server-arguments))
>                                         (extra-config (list
>                                         xorg-touchpad
>                                                             xorg-monitor))))))
>           (service slim-service-type (slim-configuration
>                                       (display ":0")
>                                       (vt "vt8")
>                                       ;; I wasn't sure if you
>                                          wanted the same
>                                       ;; xorg-configuration here,
>                                          so I left it out.
>                                       ))
>           (modify-services %desktop-services
>             (delete gdm-service-type)
>             (delete (screen-locker-service xlockmore "xlock"))))

Hi Carlo Zancanaro,

It all makes sense now!  I really appreciate your help, thanks :)


-- 
André A. Gomes
"You cannot even find the ruins..."

Message #29 received at submit <at> debbugs.gnu.org (full text, mbox):

From: André A. Gomes <andremegafone <at> gmail.com>
To: 55391-done <at> debbugs.gnu.org
Cc: bug-guix <at> gnu.org, 55391 <at> debbugs.gnu.org
Subject: Re: bug#55391: Multiple slim services
Date: Tue, 17 May 2022 16:38:05 +0100

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