Bug 491421

Summary:	Session management authentication occasionally fails
Product:	[Plasma] plasmashell	Reporter:	Kishore Gopalakrishnan <kishore96>
Component:	Session Management	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	bugs.kde, kairo, kde, KDE, natalie_clarius, wenzezlaus, zb4ng
Priority:	NOR
Version:	6.1.3
Target Milestone:	1.0
Platform:	Other
OS:	Other
See Also:	https://bugs.kde.org/show_bug.cgi?id=488520 https://bugs.kde.org/show_bug.cgi?id=491130
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Kishore Gopalakrishnan 2024-08-08 04:45:49 UTC

SUMMARY
Occasionally, session restore fails to restore the application state. All the windows are opened on the right activities and virtual desktops, but the applications themselves (e.g. Dolphin, Kate) do not restore their state.

When this occurs, I see error messages like the following in my system logs:
```
Aug 08 10:02:54 kishore-thinkpad-e495 dolphin[9408]: Qt: Session management error: Authentication Rejected, reason : MIT-MAGIC-COOKIE-1 authentication rejected
```
(and many identical errors coming from Kate, Konsole etc.)

STEPS TO REPRODUCE
Unknown; issue only happens intermittently.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.1.3
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2
Kernel Version: 6.6.42-1-lts (64-bit)
Graphics Platform: X11

ADDITIONAL INFORMATION
May be related to bug 491130, but the reporter there describes different behaviour (that some windows are not restored). They do not have the error message I mentioned in their logs. Moreover, logging out and logging in after this bug occurs does not restore the previously saved session for me (just opens with an empty session).

If there is additional information I can provide that would help debug the issue, please let me know.

Comment 1 David Edmundson 2024-10-20 14:13:20 UTC

Can you run:  `iceauth list` at a time when it's working and not working. 

Can you also check if the path it lists exists on disk:

i.e if you see:
ICE "" local/archlinux:@/tmp/.ICE-unix/1241 MIT-MAGIC-COOKIE-1 b53dad8d49d42cc7d3f0025d22f0215c

that there's a socket at /tmp/.ICE-unix/1241

Comment 2 Bug Janitor Service 2024-11-04 03:46:22 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!

Comment 3 zb4ng 2024-11-09 06:37:23 UTC

Just happened again...
But the workaround of disabling saving on logout and saving the session manually from time to time really helps. So if the bug occurs, you just have to logout and login.
See here for more details:
https://bugs.kde.org/show_bug.cgi?id=487912#c46

Comment 4 Kishore Gopalakrishnan 2024-11-09 09:46:52 UTC

Marking as duplicate of https://bugs.kde.org/show_bug.cgi?id=491130 for now; will reopen if the issue recurs with a version of Plasma where that is fixed.

*** This bug has been marked as a duplicate of bug 491130 ***