Subject: bug#37911: closed (Re: bug#37911: Cannot build a system with colord-service.)

From: [email-masked] (GNU bug Tracking System)
Date: Sat, 02 Nov 2019 14:13:02 +0000

Your bug report

#37911: 'ColorManager' D-Bus service (colord) fails to start

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
37911: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=37911
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: Re: bug#37911: Cannot build a system with colord-service.
From: Pierre Langlois <[email-masked]>
To: Ludovic Courtès <[email-masked]>
Cc: Jack Hill <[email-masked]>, [email-masked], Pierre Langlois <[email-masked]>, [email-masked]
Date: Sat, 02 Nov 2019 14:11:46 +0000
List-Id: <debbugs-submit.debbugs.gnu.org>

Hi Ludo,

Ludovic Courtès writes:

> Hi Jack and all,
>
> Ludovic Courtès <[email-masked]> skribis:
>
>> Jack Hill <[email-masked]> skribis:
>
> [...]
>
>>> I did spot another issue with colord since the recent core-updates
>>> merge: https://issues.guix.gnu.org/issue/37843 It seems like it is no
>>> longer being started automatically via dbus?
>>
>> Indeed, stracing dbus-daemon while going to the GNOME settings panel,
>> “Color” tag, I see:
>>
>> 459   sendmsg(48, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\3\1\1\213\0\0\0\3\0\0\0m\0\0\0\6\1s\0\5\0\0\0:1.95\0\0\0\4\1s\0'\0\0\0org.freedesktop.DBus.Error.AccessDenied\0\5\1u\0\2\0\0\0\10\1g\0\1s\0\0\7\1s\0\24\0\0\0org.freedesktop.DBus\0\0\0\0", iov_len=128}, {iov_base="\206\0\0\0Connection \":1.95\" is not allowed to own the service \"org.freedesktop.ColorManager\" due to security policies in the configuration file\0", iov_len=139}], msg_iovlen=2, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL <unfinished ...>
>>
>> So something somewhere is unhappy.
>
> Commit 33f9778bc83086837b99e5c5e99cd514cb0d154e fixes this and colord
> now starts correctly again.
>
> I believe that should also fix the “night light” feature in GNOME.  I
> tested it in a VM but it was hard to tell if it was working.

I can confirm it's working for me on GNOME on my thinkpad! I can use the
night light settings and the laptop screen was detected in the "Color"
section of the settings. And I can see the colord daemon is running.

This is awesome, thank you!

Marking 37911 as done, I'll let Jack close 37843 if he's happy with it.

Pierre

Subject: Cannot build a system with colord-service.
From: Pierre Langlois <[email-masked]>
To: [email-masked]
Date: Thu, 24 Oct 2019 21:45:23 +0100
List-Id: <debbugs-submit.debbugs.gnu.org>

Hello Guix!

I tried to add (service colord-service) to my config and I got a
error back :-(. I reduced my system to the minimum but the problem is
persist.

Here's the backtrace I get with the colord-system.scm config attached:

```
$ guix system build colord-system.scm
(snip)
27692 entries processed in 10.3 s
successfully built /gnu/store/76v9hszcal0llfs7q8yapp6v0rnjwmkr-manual-database.drv
building /gnu/store/xs3khl253kzrf14cn2jz5hpabd69j88v-dbus-system-services.drv...
find-files: /gnu/store/nqr4xi6yyxzlyxmpvq668ckiksf0k96a-wpa-supplicant-2.9/share/dbus-1/: No such file or directory
find-files: /gnu/store/hpgsfyn3qn0lxp1p9nwcg6fbvslwpf59-gdm-3.30.3/share/dbus-1/: No such file or directory
Backtrace:
           3 (primitive-load "/gnu/store/r5qblihnlj5ysy47k94a6s316mf?")
In ice-9/eval.scm:
    619:8  2 (_ #f)
In srfi/srfi-1.scm:
    640:9  1 (for-each #<procedure 7ffff3cb97e0 at ice-9/eval.scm:3?> ?)
In unknown file:
           0 (symlink "/gnu/store/9641z2pcm85gx0xqi51i78m6k229nryr-?" ?)

ERROR: In procedure symlink:
In procedure symlink: File exists
builder for `/gnu/store/xs3khl253kzrf14cn2jz5hpabd69j88v-dbus-system-services.drv' failed with exit code 1
build of /gnu/store/xs3khl253kzrf14cn2jz5hpabd69j88v-dbus-system-services.drv failed
View build log at '/var/log/guix/drvs/xs/3khl253kzrf14cn2jz5hpabd69j88v-dbus-system-services.drv.bz2'.
cannot build derivation `/gnu/store/sla70asv0sf2c7gn4a5v50qkmy019703-dbus-configuration.drv': 1 dependencies couldn't be built
building /gnu/store/wq1naiygmpa01hn201l2i6ihd1bz44l1-etc-polkit-1.drv...
cannot build derivation `/gnu/store/vmnby0bcy575pylvbw5lva4k7zyrxrgd-etc.drv': 1 dependencies couldn't be built
building /gnu/store/4zr21fl9wsyy591rglgw47yzw9nnia2g-gdm-custom.conf.drv...
cannot build derivation `/gnu/store/yc1mdlzqqwd24x7gkxa9n6qfmjzx83zg-system.drv': 1 dependencies couldn't be built
guix system: error: build of `/gnu/store/yc1mdlzqqwd24x7gkxa9n6qfmjzx83zg-system.drv' failed
```

Do you know what's going on?

Thanks!
Pierre