После блокировки экрана появляется запрос на пароль для разблокировки и, при вводе правильного пароля, разблокировка не происходит. Если выбрать "сменить пользователя" то удаётся зайти в систему. Началось это после обновления KDE.

Операционная система: ALT Linux 11
Версия KDE Plasma: 6.4.3
Версия KDE Frameworks: 6.15.0
Версия Qt: 6.9.1
Версия ядра: 6.12.39-6.12-alt1 (64-бита)
Графическая платформа: Wayland
Процессоры: 8 × Intel® Core™ i7-4790 CPU @ 3.60GHz
Память: 32 ГиБ ОЗУ (31,3 ГиБ доступно)
Графический процессор: AMD Radeon RX 550 / 550 Series
Производитель: Gigabyte Technology Co., Ltd.
Название продукта: H87-HD3

journalctl -ef:
...
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: QQmlComponent: Component is not ready
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: kf.plasma.quick: "file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/lockscreen/LockScreen.qml"
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]:  "Error loading QML file.\n33: Type LockScreenUi unavailable\n164: Property value set multiple times\n"
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: kscreenlocker_greet: Failed to load lockscreen QML, falling back to built-in locker
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: kscreenlocker_greet: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/lockscreen/LockScreen.qml:33:5: Type LockScreenUi unavailable
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]:          LockScreenUi {
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]:          ^
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: kscreenlocker_greet: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/lockscreen/LockScreenUi.qml:164:9: Property value set multiple times
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]:              onExited: {
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]:              ^
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: qrc:/fallbacktheme/LockScreen.qml:48:9: TypeError: Cannot read property 'implicitHeight' of null
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: qrc:/fallbacktheme/LockScreen.qml:47:9: TypeError: Cannot read property 'implicitWidth' of null
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: qrc:/fallbacktheme/LockScreen.qml:92:9: QML Connections: Detected function "onAccepted" in Connections element. This is probably intended to be a signal handler but no signal of the target matches the name.
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: qrc:/fallbacktheme/LockScreen.qml:48:9: TypeError: Cannot read property 'implicitHeight' of null
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: qrc:/fallbacktheme/LockScreen.qml:47:9: TypeError: Cannot read property 'implicitWidth' of null
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: qrc:/fallbacktheme/LockScreen.qml:92:9: QML Connections: Detected function "onAccepted" in Connections element. This is probably intended to be a signal handler but no signal of the target matches the name.
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: qrc:/fallbacktheme/LockScreen.qml:36:5: QML QQuickImage: Невозможно открыть file:///: это каталог
июл 20 11:44:18 igor kwin_wayland_wrapper[7223]: qrc:/fallbacktheme/LockScreen.qml:36:5: QML QQuickImage: Невозможно открыть file:///: это каталог
июл 20 11:44:28 igor dbus-daemon[1096]: [system] Activating via systemd: service name='net.reactivated.Fprint' unit='fprintd.service' requested by ':1.134' (uid=1000 pid=7243 comm="kcheckpass -S 20")
июл 20 11:44:28 igor kcheckpass[7245]: Authentication failure for igor (invoked by uid 1000)
июл 20 11:44:28 igor systemd[1]: Starting fprintd.service - Fingerprint Authentication Daemon...
июл 20 11:44:28 igor kwin_wayland_wrapper[7245]: kde-smartcard: Authentication failure
июл 20 11:44:28 igor kcheckpass[7242]: pam_succeed_if(kde:auth): requirement "user ingroup nopasswdlogin" not met by user "igor"
июл 20 11:44:28 igor kcheckpass[7242]: pam_tcb(kde:auth): conversation failed
июл 20 11:44:28 igor dbus-daemon[1096]: [system] Successfully activated service 'net.reactivated.Fprint'
июл 20 11:44:28 igor systemd[1]: Started fprintd.service - Fingerprint Authentication Daemon.
июл 20 11:44:28 igor kwin_wayland_wrapper[7243]: kde-fingerprint: Authentication failure
июл 20 11:44:28 igor kcheckpass[7243]: Authentication failure for igor (invoked by uid 1000)


systemctl status display-manager
● lightdm.service - Light Display Manager
     Loaded: loaded (/usr/lib/systemd/system/lightdm.service; enabled; preset: enabled)
     Active: active (running) since Sun 2025-07-20 10:51:44 +03; 1h 1min ago
 Invocation: 24ac9c929be6423dac4ea22b42d8d7a7
       Docs: man:lightdm(1)
   Main PID: 1297 (lightdm)
      Tasks: 4 (limit: 38142)
     Memory: 67.4M (peak: 138.4M)
        CPU: 1.230s
     CGroup: /system.slice/lightdm.service
             └─1297 /usr/sbin/lightdm


inxi -CG
CPU:
  Info: quad core model: Intel Core i7-4790 bits: 64 type: MT MCP cache:
    L2: 1024 KiB
  Speed (MHz): avg: 1198 min/max: 800/4000 cores: 1: 1198 2: 1198 3: 1198
    4: 1198 5: 1198 6: 1198 7: 1198 8: 1198
Graphics:
  Device-1: Advanced Micro Devices [AMD/ATI] Lexa PRO [Radeon
    540/540X/550/550X / RX 540X/550/550X] driver: amdgpu v: kernel
  Device-2: A4Tech FHD 1080P PC Camera driver: snd-usb-audio,uvcvideo
    type: USB
  Display: wayland server: X.org v: 1.21.1.18 with: Xwayland v: 24.1.8
    compositor: kwin_wayland driver: X: loaded: amdgpu
    unloaded: fbdev,modesetting,radeon,vesa dri: radeonsi gpu: amdgpu
    resolution: 1: 2560x1440~120Hz 2: 1920x1080~60Hz
  API: EGL v: 1.5 drivers: kms_swrast,radeonsi,swrast
    platforms: gbm,wayland,x11,surfaceless,device
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 25.1.6 renderer: AMD
    Radeon RX 550 / 550 Series (radeonsi polaris12 ACO DRM 3.61
    6.12.39-6.12-alt1)
  API: Vulkan v: 1.4.313 drivers: radv,llvmpipe surfaces: N/A
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
    de: kscreen-console,kscreen-doctor gpu: radeontop wl: wayland-info
    x11: xdpyinfo, xprop, xrandr


$ rpm -qa | grep -E "sddm|lightdm"
kde-display-manager-7-lightdm-6.0.10-alt1.x86_64
lightdm-kde-greeter-6.0.3-alt2.x86_64
liblightdm-gobject-1.32.0-alt10.x86_64
lightdm-1.32.0-alt10.x86_64


$ apt-repo
rpm [alt] http://ftp.altlinux.org/pub/distributions ALTLinux/Sisyphus/x86_64 classic
rpm [alt] http://ftp.altlinux.org/pub/distributions ALTLinux/Sisyphus/noarch classic
rpm [alt] http://ftp.altlinux.org/pub/distributions ALTLinux/Sisyphus/x86_64-i586 classic