bug#50580: GDM doesn't start

[Maxime Devos <maximedevos@telenet.be>]

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Maxime Devos schreef op di 14-09-2021 om 14:46 [+0200]:
> Hi,
> 
> The GDM service doesn't start anymore.  To test, you can use the attached
> xorg-repro.tmpl (guix system vm xorg-repro.tml && run the resulting script).
> QEMU will start, and it will start booting, but nothing graphical will start.
> If you switch to the last virtual terminal, you will see
> 
> [date] localhost shepherd[1]: Respawning xorg-server.
> [date] localhost shepherd[1]: Service host-name has been started.
> [date] localhost shepherd[1]: Service xorg-server has been started.
> [..]
> [date] localhost shepherd[1]:   (Respawning too fast.)
> 
> GDM used to work for me with commit 75a3413b4e5c1f7443eb944a36ff364f4c4085f4,
> but was broken with e9b87da1c3000c53cf9dbf5e737aa4d6546bd909.  To be bisected?

I did some bisecting.  9cd89b1206cf9288fc26b09f3f34883c6e309824 is a bad commit

commit 9cd89b1206cf9288fc26b09f3f34883c6e309824
Author: Tobias Geerinckx-Rice <me@tobias.gr>
Date:   Fri Sep 3 20:45:34 2021 +0200

    gnu: hplip: Update to 3.21.6.

    * gnu/packages/cups.scm (hplip): Update to 3.21.6.

and the previous commit 7be258c0ddae175450622884920d42a758bbced6 is good.

> Greetings,
> Maxime.

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