Bug 489955

Summary: Lock screen stuck at "unlock" after successful fingerprint
Product: [Plasma] plasmashell Reporter: Anil <cd+kde>
Component: Screen lockingAssignee: Plasma Bugs List <plasma-bugs-null>
Status: CONFIRMED ---    
Severity: normal CC: kdedev, will
Priority: NOR    
Version First Reported In: 6.2.4   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Anil 2024-07-09 02:39:56 UTC 
SUMMARY
With a certain combination of user steps, unlocking a computer with a fingerprint results in the lock screen being forever stuck with an unresponsive button that says "unlock"

STEPS TO REPRODUCE
This is not a 100% repro, but occurs maybe 1 in 5 times
1.  Lock the computer
2. Unlock, try entering an incorrect password
3. After it says it's incorrect, use the fingerprint reader


OBSERVED RESULT
Password field goes away, replaced with a button that just says <unlock>
Pressing the unlock button doesn't do anything.
Pressing the power button causes the screen locker to go away, revealing the desktop?!

EXPECTED RESULT
Computer is unlocked


SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.1.2
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2
Kernel Version: 6.9.7-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i5-1135G7 @ 2.40GHz
Memory: 15.4 GiB of RAM
Graphics Processor: Mesa Intel® Xe Graphics
Manufacturer: Framework
Product Name: Laptop
System Version: A3

ADDITIONAL INFORMATION
Comment 1 Will Styler 2024-07-12 03:13:29 UTC 
I'm experiencing the same thing, I'm not able to unlock the computer without a hard reset (held power button). This happens with or without external monitors attached.

Operating System: Fedora Linux 40
KDE Plasma Version: 6.1.1
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2
Kernel Version: 6.9.7-200.fc40.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7840U w/ Radeon 780M Graphics
Graphics Processor:  AMD Radeon 780M
Manufacturer: Framework
Product Name: Laptop 13 (AMD Ryzen 7040Series)
System Version: A7
Comment 2 TraceyC 2024-07-18 16:37:34 UTC 
I've experienced this myself as well. It's caused me to have to unlock with loginctl at a TTY

Operating System: Solus 4.5
KDE Plasma Version: 6.1.3
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2
Kernel Version: 6.9.8-294.current (64-bit)
Graphics Platform: X11
Processors: 16 × 11th Gen Intel® Core™ i7-11800H @ 2.30GHz
Memory: 62.5 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3060 Laptop GPU/PCIe/SSE2
Manufacturer: Dell Inc.
Product Name: XPS 17 9710