https://bugs.kde.org/show_bug.cgi?id=523285
Bug ID: 523285
Summary: Restarting plasmalogin.service crashes
plasmalogin-helper; greeter only renders on secondary
VT and freezes on login attempt
Classification: Plasma
Product: plasma-login-manager
Version First 6.7.2
Reported In:
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Target Milestone: ---
STEPS TO REPRODUCE
1. KDE Plasma Wayland session, autologin enabled, amdgpu (RX 6800 XT)
2. From a terminal in the running session: sudo systemctl restart plasmalogin
3. Observe active VT; switch VTs with Ctrl+Alt+F2; attempt login
OBSERVED RESULT
After restart: active VT shows only a black screen (no greeter). Ctrl+Alt+F2
switches to a VT displaying the greeter. Entering a correct password freezes
the greeter UI (input field stuck, no error shown, no session starts).
Switching VTs away and back redraws a fresh greeter, which freezes again on the
next login attempt — reproducible loop. Journal shows plasmalogin-helper
crashing (exit code 1) launching startplasma-wayland, identical signature every
reproduction (4 total):
```
plasmalogin[10634]: Authentication error: PLASMALOGIN::Auth::ERROR_INTERNAL
"Process crashed"
plasmalogin[10634]: Auth: plasmalogin-helper (--socket ... --start
/usr/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland
--user admin --autologin) crashed (exit code 1)
```
Recovery only via reboot over SSH.
EXPECTED RESULT
DM restart returns a working greeter on the active VT; login starts a session.
SOFTWARE/OS VERSIONS
Operating System: Nobara Linux 44
KDE Plasma Version: 6.7.2
KDE Frameworks Version: 6.27.0
Qt Version: 6.11.1
Kernel Version: 7.1.3-200.nobara.fc44.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor
Memory: 32 GiB of RAM (31,2 GiB usable)
Graphics Processor: AMD Radeon RX 6800 XT
ADDITIONAL INFORMATION
Full journal excerpt: https://pb.nobaraproject.org/h56mo
Autologin is enabled for the affected user. Can test patches and provide
coredumps (coredumpctl available).
No coredump for plasmalogin-helper (coredumpctl checked) — exit code 1 appears
to be a controlled error exit, not a segfault.
`plasmalogin` package unmodified from upstream.
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