Bug 515393

Summary: plasma-login-greeter errors out shortly after startup with HELPER_AUTH_ERROR
Product: [Plasma] plasma-login-manager Reporter: Szczepan Hołyszewski <rulatir>
Component: generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal CC: kde, olib141
Priority: NOR    
Version First Reported In: 6.5.91   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Relevant journal lines

Description Szczepan Hołyszewski 2026-02-01 15:52:26 UTC
STEPS TO REPRODUCE
1. Disable SDDM, enable plasmalogin
2. Reboot

OBSERVED RESULT

Greeter appears on screen but doesn't respond to input, and exits after a few seconds.

EXPECTED RESULT

Greeter should work.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.5.91
KDE Frameworks Version: 6.22.0
Qt Version: 6.11.0
Kernel Version: 6.18.7-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 12 × Intel® Core™ i7-8700 CPU @ 3.20GHz
Memory: 32 GiB of RAM (31.3 GiB usable)
Graphics Processor: NVIDIA GeForce GTX 960
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7B24
System Version: 2.0
Comment 1 Szczepan Hołyszewski 2026-02-01 15:54:13 UTC
Created attachment 189142 [details]
Relevant journal lines
Comment 2 Antonio Rojas 2026-02-01 16:27:51 UTC

*** This bug has been marked as a duplicate of bug 515392 ***
Comment 3 Szczepan Hołyszewski 2026-02-01 21:46:42 UTC
Sorry! Double submission. That's exactly what happens when you report a bug and test potential fixes for the login flow at the same time...