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Re: Trouble configuring guix


From: Yasuaki Kudo
Subject: Re: Trouble configuring guix
Date: Sun, 20 Feb 2022 11:03:07 +0900
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0

Hi!,

I just wanted to let you know I came to Guix for the exact same reason - Nix was way too cryptic for me 😅

I don't have any answer (sorry I am not familiar with what you mentioned) but here's my configuration (I use Wayland and "Corrupt" (meaning non-deblobbed, I guess) Linux)

https://github.com/yugawara/workers-cafe/tree/main/workers-memo/guix

-Yasu

On 2/20/22 09:33, Cássio Tavares wrote:
Hello there!

Well, I need help...

## Context:

   * I have just a little familiarity with Guile Scheme, because I'm a
     LilyPond user;
   * I finally have a desktop that doesn't need non-libre drivers;
   * Although I'm not in the Tech world, I love GNU's (and the FSF's)
     philosophy;
   * I have been playing with Nix, but find it very cryptic -- not easy
     to understand at all.

   So, Guix seems to be the path I'm on now.

## Situation:

   I have several problems to fix, but the most important right now is
   to get my keyboard to work with sddm, and I need sddm for
   Wayland. So, without sddm, this works:

```
     ...

     (define %this-keyboard  (keyboard-layout "br" "abnt2"))

     ...

     (operating-system
       ...

       (keyboard-layout  %this-keyboard)

       ... )

```

   But `guix system reconfigure /etc/config.scm` fails when this is this:

```
     (use-modules
       (gnu)
       (gnu system nss)
       (gnu services networking)
       (gnu services sddm)
       (gnu services cups)
       (gnu services desktop)
       (gnu services ssh)
       (gnu services xorg))

     ...

     (define %this-keyboard (keyboard-layout  "br" "abnt2"))

     ...

     (operating-system
       ...

       (keyboard-layout  %this-keyboard)

       ...

       (services
         (append
           (list
             (service dhcp-client-service-type)
             (service ntp-service-type)
             (service gpm-service-type)
             (service cups-service-type)
             (service elogind-service-type)
             (service sddm-service-type
               (sddm-configuration
                 (display-server "wayland")
                 (numlock "on")
                 (theme "guix-simplyblack-sddm-theme")
                 (xorg-configuration
                   (keyboard-layout %this-keyboard)))))
           %base-services))

       ... )

```

   Then, when I try to run `guix system reconfigure /etc/config.scm`, I
   get this backtrace:

root@udu ~#
   > Backtrace:
   >           19 (primitive-load "/root/.config/guix/current/bin/guix")
   > In guix/ui.scm:
   >    2229:7 18 (run-guix . _)
   >   2192:10 17 (run-guix-command _ . _)
   > In ice-9/boot-9.scm:
   >   1752:10 16 (with-exception-handler _ _ #:unwind? _ # _)
   > In guix/status.scm:
   >     829:3 15 (_)
   >     809:4 14 (call-with-status-report _ _)
   > In guix/scripts/system.scm:
   >    1256:4 13 (_)
   > In ice-9/boot-9.scm:
   >   1752:10 12 (with-exception-handler _ _ #:unwind? _ # _)
   > In guix/store.scm:
   >    658:37 11 (thunk)
   >    1320:8 10 (call-with-build-handler #<procedure 7faf357d0060 at g…> …)
   >   2129:25  9 (run-with-store #<store-connection 256.99 7faf38008190> …)
   > In guix/scripts/system.scm:
   >     827:2  8 (_ _)
   >     703:8  7 (_ #<store-connection 256.99 7faf38008190>)
   > In gnu/system.scm:
   >   1227:19  6 (operating-system-derivation _)
   >    748:11  5 (operating-system-services #<<operating-system> kernel:…>)
   >    782:20  4 (services _)
   > In /etc/config.scm:
   >    185:14  3 (services #<<operating-system> kernel: #<package linux-…>)
   >    185:14  2 (services #<<keyboard-layout> name: "br" variant: "abnt…>)
   > In ice-9/boot-9.scm:
   >   1685:16  1 (raise-exception _ #:continuable? _)
   >   1685:16  0 (raise-exception _ #:continuable? _)
   >
   > ice-9/boot-9.scm:1685:16: In procedure raise-exception:
   > Wrong type to apply: #<<keyboard-layout> name: "br" variant:
"abnt2" model: #f options: ()>

## Conclusion:

   Two things tell me that the problem is really in the keyboard
   configuration within the configuration of the sddm service:

   * When I remove the `xorg-configuration` from the `sddm-configuration`,
     the reconfiguration returns no error, and the sddm service works
     normally.
   * And in this setup, the keyboard works on the console, just not on the
     desktop environment.

Best regards,
And thank you.

Cassio




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