Bug#1052374: gdm3: Shows only an error screen when gnome.session is missing

[Alper Nebi Yasak]

On 2023-09-21 13:39 +03:00, Simon McVittie wrote:
> On Thu, 21 Sep 2023 at 11:17:51 +0100, Simon McVittie wrote:
>> On Thu, 21 Sep 2023 at 09:41:25 +0300, Alper Nebi Yasak wrote:
>>> I've been using gdm3 without GNOME, and after recently upgrading gdm3 to
>>> 45~beta-1 I started getting the gray "Oh no!" error message instead of
>>> the login screen.
>>
>> Please look in the system log (systemd Journal) for the error messages
>> that occur at this time, and send it to the bug address. Knowing only
>> "it crashed" does not give us much information, and in particular, if we
>> can reproduce a crash with gdm but not GNOME, it does not give us enough
>> information to know that we have really reproduced the same crash you see.
> 
> I can reproduce something similar in a test VM after
> `apt install --no-install-recommends xorg openbox gdm3`, does the attached
> match what you see?

I had tried `journalctl -u gdm3` and `dmesg` but those were not very
informative... Didn't think of `journalctl -b`, sorry. It's similar to
your logs, attached for the record.

More specifically, I do have "gsettings[1650]: unable to open named
profile (Debian-gdm): using the null configuration." which seems to
match what you fixed (per the changelog).

Anyway, I built 45.0.1-1 locally and can confirm it fixes this error
screen, thanks!
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