gdm broken after update

injiniero · 2025-09-25 06:09:11

seth wrote:

I guess segfaulting should™ not but has to be expected from <gnomestuff> but as mentioned: regardless of the current mess, X11 support is supposed to be completely removed w/ v50 - leaving GDM behind is inevitable if you want to stay on X11

If I understand this correctly, is it possible to continue using GNome 49 on X11 by replacing GDM with LightDM?
I can't use Wayland on my computer because it doesn't work properly with my NVIDIA GeForce GTX 760 card and the nvidia-470xx-dkms driver.

Personally, I think removing x11 support from GNome when Wayland isn't yet a mature project is a serious mistake.

seth · 2025-09-25 06:54:02

No, the long shot here is/was to get GDM on X11 working.
X11 is officially not compiled into "gnome", the behavior of GDM and https://bbs.archlinux.org/viewtopic.php … 8#p2263248 suggest it might still work *there*

I think removing [N] from GNome when [M] isn't yet a mature project is a serious mistake.

Gnome has a long standing history of cutting features because they can and don't care.
It's effectively developed like a hobby pet-peeve project where you're constantly subjected to the whiffs and whims of some latest knee-jerk idea.

That being said:

I can't use Wayland on my computer because it doesn't work properly with my NVIDIA GeForce GTX 760 card and the nvidia-470xx-dkms driver.

Are you sure about that?
Unlike 390xx, the 470xx drivers support KMS and GBM - what exactly doesn't work? Do you have an open thread about that (please don't hijack this one)

jose1711 · 2025-09-25 07:39:55

seth wrote:

Back to the PAM problem:
So unix_chkpwd checks /etc/shadow and is typically called from the unix pam module.
sudo grep -i gdm /etc/shadow
will likely yield no results.
If anybody has downgraded gnome to deal w/ this: do you have a shadow entry for gdm?
Also there're probably some /etc/pam.d/*gdm* ?

GDM should™ not use pam_unix/shadow when there's no shadow entry, but what if you just add
gdm-greeter:!*:20224::::::
to /etc/shadow?

@seth thank you, i finally got the GDM screen i think this post should be pinned (or at least documented in arch wiki).

seth · 2025-09-25 07:57:39

That's been a workaround for what's most likely actually a now mis-/insufficiently configured nsswitch.conf, https://bbs.archlinux.org/viewtopic.php … 5#p2263495

sultanoswing · 2025-09-25 09:28:13

Thanks for the nsswitch.conf and /etc/shadow fixes....I ran into the same black screen / blinking cursor bug after upgrading this afternoon.

Dexter23 · 2025-09-25 12:17:21

Hi have a problem now with AnyDesk i use when connecting to remote pc it seems slow/lagging on wayland server, but i want to use Gnome as DE.

seth · 2025-09-25 12:36:42

@sultanoswing, you should not require the shadow entry, I only suggested that as a mitigation to give the pam module what it wasn't supposed to ask for anyway

@Dexter23, please open a new thread.
This one's busy enough and not to be hijacked with follow-up "but gnome wayland causes problems".

sultanoswing · 2025-09-25 20:43:12

seth wrote:

@sultanoswing, you should not require the shadow entry, I only suggested that as a mitigation to give the pam module what it wasn't supposed to ask for anyway

Awww...but I like belts & braces

Removed.

Arch Linux

#101 2025-09-25 06:09:11

Re: gdm broken after update

#102 2025-09-25 06:54:02

Re: gdm broken after update

#103 2025-09-25 07:39:55

Re: gdm broken after update

#104 2025-09-25 07:57:39

Re: gdm broken after update

#105 2025-09-25 09:28:13

Re: gdm broken after update

#106 2025-09-25 12:17:21

Re: gdm broken after update

#107 2025-09-25 12:36:42

Re: gdm broken after update

#108 2025-09-25 20:43:12

Re: gdm broken after update

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