Bug 31570

Summary: Some logins fail on multi-DE system
Product: Mageia Reporter: Len Lawrence <tarazed25>
Component: Release (media or process)Assignee: GNOME maintainers <gnome>
Status: NEW --- QA Contact:
Severity: normal    
Priority: Normal CC: jani.valimaa, lewyssmith, sysadmin-bugs
Version: Cauldron   
Target Milestone: ---   
Hardware: x86_64   
OS: Linux   
See Also: https://bugs.mageia.org/show_bug.cgi?id=31571
Whiteboard:
Source RPM: not known CVE:
Status comment:
Attachments: Boot journal for the login test session.

Description Len Lawrence 2023-02-17 19:40:24 CET 
Description of problem:
This has happened on only one piece of hardware so far - A mini-computer containing an IntelNUC12 processor.  This originally contained an UBUNTU Mate system.  The current system was installed from a USB device with support for GNOME, Plasma, Mate, Cinnamon and Xfce desktop environments for testing purposes only - it will eventually be used with Mate only.  The problem arises when switching from one DE to another.  Sometimes the login succeeds but on other occasions tries to establish the desktop but cycles back to login.  This has been seen in the past for GDM on one particular machine so SDDM was used as a greeter.

Version-Release number of selected component (if applicable):
Mageia9-beta1.6 x86_64 iso

How reproducible:
This is very difficult to say.  Experiments were carried out to try to establish reproducibility.  Below is one such series of logins.

It is not obvious what the common factor in failures is.  Wayland seems to be reliable but X11 based DEs sometimes break.  There also seems to sort of evolution going on because in an earlier series of tests it was impossible to get back to Mate or anything else after another DE login had failed, not without rebooting.  Or maybe not; GDM was used in those tests.  For what it is worth the  boot log is available.


Steps to Reproduce:
1  Mate - OK
2  GNOME Wayland - OK
3  Mate - OK
4  GNOME Classic Wayland - OK
5  Mate - OK
6  Cinnamon - failed
7  Mate - failed
   Saved journal (2)
8  GNOME - OK
9  Mate - OK
10 Xfce - failed
11 Mate - OK
   Installed task-xfce
12 Xfce - failed
13 GNOME Wayland - OK
14 Mate - OK
15 Plasma X11 - OK
16 Mate - OK
17 Cinnamon software rendering - failed
18 Mate - OK
19 Cinnamon - failed
20 Mate - OK
   Installed task-cinnamon
21 Cinnamon - failed
22 Mate - OK
23 Plasma - OK
24 GNOME Classic Wayland - OK
25 GNOME Classic on Xorg - failed
26 Mate - OK








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Comment 1 Len Lawrence 2023-02-17 19:45:20 CET 
Created attachment 13704 [details]
Boot journal for the login test session.
Comment 2 Lewis Smith 2023-02-17 21:28:32 CET 
Thank you for reporting this.
I noticed it about a week ago when testing something under all desktops, but hoped it would sort itself out. Apparently not.
I have just re-done tests on an up-to-date Cauldron system.

With lightDM and LXDM:
Cinnamon         loops on login screen
Gnome (Wayland)  "Oh no! ..."
Gnome (Xorg)     "Oh no! ..."
LXDE             OK
LxQt             OK
Mate             goes nowhere, stops dead
Plasma           OK (but V slow to start via LXDM)
Xfce             OK (but slow to start via LXDM)

Trying GDM:      "Oh no! ..." even before login screen
Did NOT try SDDM (c.f. Len).

Since my failures are all Gnome related, if indirectly, assigning thus.
However, they are not consistent with Len's SDDM experience.
CC'ing Jani.

CC: (none) => jani.valimaa
Assignee: bugsquad => gnome

Lewis Smith 2023-02-17 21:37:15 CET

See Also: (none) => https://bugs.mageia.org/show_bug.cgi?id=31571

Lewis Smith 2023-02-17 21:38:47 CET

CC: (none) => lewyssmith
Summary: Some logins fail on multi-DE system on IntelNUC12 for Mageia9-beta1.6 iso => Some logins fail on multi-DE system