https://bugs.kde.org/show_bug.cgi?id=522403
Bug ID: 522403
Summary: Authentication failure is triggered immediately after
resume before any password is entered
Classification: Plasma
Product: plasmashell
Version First 6.7.1
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Screen locking
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: 1.0
Created attachment 193856
--> https://bugs.kde.org/attachment.cgi?id=193856&action=edit
output of "sudo journalctl --no-pager --since "2026-06-29 19:22:35" --until
"2026-06-29 21:46:08" > kde_error.log"
After resuming from suspend on Plasma Wayland session the lock screen
immediately triggers an authentication failure before any password has been
entered.
error flow-
boot into plasma wayland session
login
let the system stay idle for sometime to auto lock
wake up the system by any means (touching the touchpad or mocing mouse)
do not type the password
result
an authentication failure is triggered before any user input saying could not
authenticate*
the journal contained pam_unix(kde:auth): unexpected response from failed
conversation function conversation failed auth could not identify password for
[username]
pacman -Q kscreenlocker plasma-workspace kwin plasma-desktop linux
linux-firmware qt6-base
kscreenlocker 6.7.1-1
plasma-workspace 6.7.1-1
kwin 6.7.1-1
plasma-desktop 6.7.1-1
linux 7.0.14.arch1-1
linux-firmware 20260622-1
qt6-base 6.11.1-1
echo $XDG_SESSION_TYPE
wayland
plasmashell --version
plasmashell 6.7.1
kwin_wayland --version
kwin 6.7.1
uname -a
Linux [ ] 7.0.14-arch1-1 #1 SMP PREEMPT_DYNAMIC Sat, 27 Jun 2026 16:15:10 +0000
x86_64 GNU/Linux
kded6 --version
kded6 6.27.0
this issue has been going on lately for sometimes now with the exact same error
and exact same condition
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