Bug 496959 - System freezes when trying to switch User after Autologin
Summary: System freezes when trying to switch User after Autologin
Status: RESOLVED DOWNSTREAM
Alias: None
Product: kde
Classification: I don't know
Component: general (show other bugs)
Version: unspecified
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Unassigned bugs mailing-list
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-12-02 21:36 UTC by nodscher
Modified: 2024-12-13 20:00 UTC (History)
1 user (show)

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Description nodscher 2024-12-02 21:36:59 UTC 
SUMMARY
The System Completely Freezes (Display Output stuck, No switching ttys. no Caps/Numlock, no ctrl-alt-delete, requires hard reboot) when trying to switch User (via kscreenlocker or the start menu) when initial login was via sddm autologin. It works completely fine with autologin disabled or when login out and in again first.

journalctl show these significant seeming (at least to me) logs:
sddm[849]: Auth: sddm-helper exited with 5
sddm-helper[2259]: Failed to take control of "/dev/tty1" ("username"): Operation not permitted


STEPS TO REPRODUCE
1. Enable Autologin
2. Try to switch user

OBSERVED RESULT
Crashes Everything

EXPECTED RESULT
No crash

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.2.4
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.0
Kernel Version: 6.12.1-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3070 Ti/PCIe/SSE2
Comment 1 Nate Graham 2024-12-13 20:00:43 UTC 
This is going to be an SDDM issue or a local setup issue. I'd recommend asking for help about it on the Arch forum to determine which it is. Thanks!