Hi,

Wed, 24 Apr 2019 20:41:16 +0200
Tobias Geerinckx-Rice <me@tobias.gr> wrote:

> What do you mean?  We don't force GDM on anyone.

My config has slim-service-type and no mention of "gdm" anywhere (unchanged
for more than a year).
I suddenly got gdm when I did "guix system reconfigure"--and it didn't work
to login.  Slim was gone on reboot.
That's why I was fixing gdm in the last few days (bug# 35377).

> I'm still unable to use fprintd at all (I think, I've never used 
> it before):
> 
>   ~ λ fprintd-enroll nckx
>   Using device /net/reactivated/Fprint/Device/0
>   failed to claim device: Not Authorized:
>     GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed:
>     Action net.reactivated.fprint.device.enroll is not registered
>   ~ λ sudo fprintd-enroll nckx
>   Using device /net/reactivated/Fprint/Device/0
>   failed to claim device: Not Authorized:
>     GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed:
>     Action net.reactivated.fprint.device.setusername is not 
>     registered

Yeah, seems that it also needs a polkit extension.
I've added it to guix master now, as
commit 9374cbd1fb29395a5e849e95e8a249e5f9f944c0.