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#1 2019-02-06 15:07:26

51ckb01
Member
Registered: 2018-09-14
Posts: 11

[SOLVED] KDE - The screen locker is broken

Hello!
Sorry for my bad english sad
I have a problem with screen locker in Kde and I can not get over it

Error Message:

The screen locker is broken and unlocking is not possible anymore.
In order to unlock switch to a virtual terminal (e.g. Ctrl+Alt+F2),
log in and execute the command:
loginctl unlock session c2
Afterwards switch back to the running session

Info system:

OS: Arch Linux 
Kernel: x86_64 Linux 4.14.90-1-lts
Uptime: 7h 51m
Packages: 1339
Shell: zsh 5.7
Resolution: 3840x1080
DE: KDE 5.54.0 / Plasma 5.14.5
WM: KWin
GTK Theme: Breeze [GTK2/3]
Icon Theme: breeze
Font: Noto Sans Regular
CPU: Intel Core i7-4600U @ 4x 3.3GHz [56.0°C]
GPU: Mesa DRI Intel(R) Haswell Mobile 
RAM: 4241MiB / 7856MiB

Systemd version= 240

The "workaround" is just enter in TTY2, login with root usera and run 

loginctl unlock-session c2

Thank you all in advance and I remain available for all info!!!

Last edited by 51ckb01 (2019-04-09 10:22:26)

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#2 2019-02-08 16:27:19

johane
Member
From: Dalarna - Sweden
Registered: 2010-02-05
Posts: 42

Re: [SOLVED] KDE - The screen locker is broken

Try reboot your system. smile

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#3 2019-02-12 09:53:29

51ckb01
Member
Registered: 2018-09-14
Posts: 11

Re: [SOLVED] KDE - The screen locker is broken

johane wrote:

Try reboot your system. smile

LoL, seriously i don't understand this behavior. I don't have particulary logs. sad
If someone have an idea (check logs, ecc. ecc.) please share with us 
Love

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#4 2019-02-12 10:52:10

WorMzy
Forum Moderator
From: Scotland
Registered: 2010-06-16
Posts: 9,162
Website

Re: [SOLVED] KDE - The screen locker is broken

This behaviour usually shows up after you update your system (some combination of plasma, systemd and/or dbus packages). Have you just updated your system?

Sakura:-
Mobo: MSI X299 TOMAHAWK ARCTIC // Processor: Intel Core i7-7820X 3.6GHz // GFX: nVidia GeForce GTX 970 // RAM: 32GB (4x 8GB) Corsair DDR4 (@ 3000MHz) // Storage: 1x 3TB HDD, 5x 1TB HDD, 2x 120GB SSD, 1x 275GB M2 SSD

Making lemonade from lemons since 2015.

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#5 2019-02-12 15:09:59

51ckb01
Member
Registered: 2018-09-14
Posts: 11

Re: [SOLVED] KDE - The screen locker is broken

WorMzy wrote:

This behaviour usually shows up after you update your system (some combination of plasma, systemd and/or dbus packages). Have you just updated your system?

Not today but this error appears already from 3 updates.
You can direct me to the logs to see?

Trying to do a better analysis, I think this problem was born with the addition of a second monitor connected to the thunderbolt port (first is connected in hdmi port)  and the addition of a usb hub with port vga + hdmi + ethernet (ecc. ecc.)
From some research I arrived at this document:
http://www.lightofdawn.org/wiki/wiki.cgi/LinuxMultiSeat

My list seats is this:

loginctl list-seats
SEAT 
seat0

1 seats listed.

but I think at one point I got lost hahahahaha
sad

Last edited by 51ckb01 (2019-02-12 15:21:53)

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#6 2019-02-12 15:30:13

seth
Member
Registered: 2012-09-03
Posts: 13,062

Re: [SOLVED] KDE - The screen locker is broken

What do you use as wallpaper type for the locker? World Map?

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#7 2019-02-12 15:32:38

WorMzy
Forum Moderator
From: Scotland
Registered: 2010-06-16
Posts: 9,162
Website

Re: [SOLVED] KDE - The screen locker is broken

You don't have more than one seat (or at least, you haven't configured more than one seat), so multiseat is not related to your issue.

You can check the logs with journalctl: https://wiki.archlinux.org/index.php/Sy … ing_output

Possible points of interest would be the journal for systemd-logind, as well as the user journal for your account (although plasma is a very.. chatty DE, you will get a lot of unrelated log spam, start by looking at -p3 and higher messages).

Sakura:-
Mobo: MSI X299 TOMAHAWK ARCTIC // Processor: Intel Core i7-7820X 3.6GHz // GFX: nVidia GeForce GTX 970 // RAM: 32GB (4x 8GB) Corsair DDR4 (@ 3000MHz) // Storage: 1x 3TB HDD, 5x 1TB HDD, 2x 120GB SSD, 1x 275GB M2 SSD

Making lemonade from lemons since 2015.

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#8 2019-02-14 11:03:39

51ckb01
Member
Registered: 2018-09-14
Posts: 11

Re: [SOLVED] KDE - The screen locker is broken

Tnx guys first of all I adore you for availability!!! love
In journalctl i don't have error (i disable long debug log ( i add in /etc/environment -->  export QT_LOGGING_RULES='*=false')
For Wallpaper i use a personal jpeg (1920x1080)
My journalctl error:

journalctl -b -p3
feb 14 08:00:12 Arch kernel: Error parsing PCC subspaces from PCCT
feb 14 08:00:12 Arch kernel: ACPI Error: Needed type [Reference], found [Integer] ffff95fe9412b3a8 (20170728/exresop-103)
feb 14 08:00:12 Arch kernel: ACPI Exception: AE_AML_OPERAND_TYPE, While resolving operands for [OpcodeName unavailable] (20170728/dswexec-461)
feb 14 08:00:12 Arch kernel: ACPI Error: Method parse/execution failed \_PR.CPU0._PDC, AE_AML_OPERAND_TYPE (20170728/psparse-550)
feb 14 08:00:13 Arch dhcpcd[379]: dhcpcd_prestartinterface: wlp3s0: Operation not possible due to RF-kill

Last edited by 51ckb01 (2019-02-14 11:03:56)

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#9 2019-02-14 15:05:55

seth
Member
Registered: 2012-09-03
Posts: 13,062

Re: [SOLVED] KDE - The screen locker is broken

To be sure: not the wallpaper on your desktop by the fancyness of your screenlocker.

stat /sbin/unix_chkpwd
LC_ALL=C pacman -Qkk | grep -v ', 0 altered files'

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#10 2019-02-15 09:26:05

51ckb01
Member
Registered: 2018-09-14
Posts: 11

Re: [SOLVED] KDE - The screen locker is broken

seth wrote:

To be sure: not the wallpaper on your desktop by the fancyness of your screenlocker.

stat /sbin/unix_chkpwd
LC_ALL=C pacman -Qkk | grep -v ', 0 altered files'

Ah ok .. I use stock screenlocker theme

this is the stat output:

stat /sbin/unix_chkpwd
  File: /sbin/unix_chkpwd
  Dim.: 30496           Blocchi: 64         Blocco di IO: 4096   file regolare
Device: 802h/2050d      Inode: 931249      Coll.: 1
Accesso: (6755/-rwsr-sr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Accesso  : 2019-02-14 15:58:59.404300299 +0100
Modifica : 2018-06-22 10:21:58.000000000 +0200
Cambio   : 2018-09-11 19:45:46.396847332 +0200
Creazione: -

And then is the output of second command:

LC_ALL=C pacman -Qkk | grep -v ', 0 altered files'
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-simplyblack (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-simplyblack/AUTHORS (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-simplyblack/COPYING (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-simplyblack/Main.qml (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-simplyblack/TRADEMARKS (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-simplyblack/angle-down.png (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-simplyblack/archlinux.png (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-simplyblack/background.png (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-simplyblack/metadata.desktop (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-simplyblack/screenshot.png (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-simplyblack/theme.conf (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-soft-grey (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-soft-grey/AUTHORS (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-soft-grey/COPYING (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-soft-grey/Main.qml (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-soft-grey/TRADEMARKS (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-soft-grey/angle-down.png (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-soft-grey/archlinux.png (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-soft-grey/background.png (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-soft-grey/metadata.desktop (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-soft-grey/screenshot.png (No such file or directory)
warning: archlinux-themes-sddm: /usr/share/sddm/themes/archlinux-soft-grey/theme.conf (No such file or directory)
warning: audit: /etc/audisp/plugins.d/af_unix.conf (Permission denied)
warning: audit: /etc/audisp/plugins.d/au-remote.conf (Permission denied)
warning: audit: /etc/audisp/plugins.d/audispd-zos-remote.conf (Permission denied)
warning: audit: /etc/audisp/plugins.d/syslog.conf (Permission denied)
archlinux-themes-sddm: 27 total files, 22 altered files
audit: 155 total files, 4 altered files
warning: cups: /etc/cups/classes.conf (Permissions mismatch)
warning: cups: /etc/cups/printers.conf (Permissions mismatch)
warning: cups: /etc/cups/subscriptions.conf (Permissions mismatch)
backup file: cups: /etc/cups/classes.conf (Modification time mismatch)
backup file: cups: /etc/cups/classes.conf (Size mismatch)
backup file: cups: /etc/cups/printers.conf (Modification time mismatch)
backup file: cups: /etc/cups/printers.conf (Size mismatch)
backup file: cups: /etc/cups/subscriptions.conf (Modification time mismatch)
backup file: cups: /etc/cups/subscriptions.conf (Size mismatch)
cups: 872 total files, 3 altered files
backup file: filesystem: /etc/fstab (Modification time mismatch)
backup file: filesystem: /etc/fstab (Size mismatch)
backup file: filesystem: /etc/group (Modification time mismatch)
backup file: filesystem: /etc/group (Size mismatch)
backup file: filesystem: /etc/gshadow (Modification time mismatch)
backup file: filesystem: /etc/gshadow (Size mismatch)
backup file: filesystem: /etc/hosts (Modification time mismatch)
backup file: filesystem: /etc/hosts (Size mismatch)
backup file: filesystem: /etc/nsswitch.conf (Modification time mismatch)
backup file: filesystem: /etc/nsswitch.conf (Size mismatch)
backup file: filesystem: /etc/passwd (Modification time mismatch)
backup file: filesystem: /etc/passwd (Size mismatch)
backup file: filesystem: /etc/resolv.conf (Modification time mismatch)
backup file: filesystem: /etc/resolv.conf (Size mismatch)
backup file: filesystem: /etc/shadow (Modification time mismatch)
backup file: filesystem: /etc/shadow (Size mismatch)
backup file: filesystem: /etc/shells (Modification time mismatch)
backup file: filesystem: /etc/shells (Size mismatch)
warning: forticlientsslvpn: /opt/fortinet/forticlientsslvpn/helper/subproc (Permissions mismatch)
warning: forticlientsslvpn: /opt/fortinet/forticlientsslvpn/helper/waitppp.sh (Permissions mismatch)
forticlientsslvpn: 39 total files, 2 altered files
backup file: glibc: /etc/locale.gen (Modification time mismatch)
backup file: glibc: /etc/locale.gen (Size mismatch)
backup file: grub: /etc/default/grub (Modification time mismatch)
backup file: grub: /etc/default/grub (Size mismatch)
warning: java-runtime-common: /usr/lib/jvm/default (Symlink path mismatch)
warning: java-runtime-common: /usr/lib/jvm/default (Modification time mismatch)
warning: java-runtime-common: /usr/lib/jvm/default-runtime (Symlink path mismatch)
warning: java-runtime-common: /usr/lib/jvm/default-runtime (Modification time mismatch)
java-runtime-common: 21 total files, 2 altered files
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.alias (Modification time mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.alias.bin (Modification time mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.builtin.bin (Modification time mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.dep (Modification time mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.dep (Size mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.dep.bin (Modification time mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.dep.bin (Size mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.devname (Modification time mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.softdep (Modification time mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.symbols (Modification time mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.symbols (Size mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.symbols.bin (Modification time mismatch)
warning: linux-lts: /usr/lib/modules/4.14.90-1-lts/modules.symbols.bin (Size mismatch)
linux-lts: 4844 total files, 9 altered files
backup file: pacman: /etc/pacman.conf (Modification time mismatch)
backup file: pacman: /etc/pacman.conf (Size mismatch)
backup file: pacman-mirrorlist: /etc/pacman.d/mirrorlist (Modification time mismatch)
backup file: pacman-mirrorlist: /etc/pacman.d/mirrorlist (Size mismatch)
backup file: pam: /etc/environment (Modification time mismatch)
backup file: pam: /etc/environment (Size mismatch)
backup file: pambase: /etc/pam.d/system-login (Modification time mismatch)
backup file: pambase: /etc/pam.d/system-login (Size mismatch)
warning: polkit: /etc/polkit-1/rules.d/50-default.rules (Permission denied)
polkit: 199 total files, 1 altered file
backup file: sddm: /usr/share/sddm/scripts/Xsetup (Modification time mismatch)
backup file: sddm: /usr/share/sddm/scripts/Xsetup (Size mismatch)
backup file: sudo: /etc/sudoers (Modification time mismatch)
backup file: sudo: /etc/sudoers (Size mismatch)
warning: systemd: /usr/share/polkit-1/rules.d/systemd-networkd.rules (Permission denied)
warning: vlc: /usr/lib/vlc/plugins/plugins.dat (Modification time mismatch)
warning: vlc: /usr/lib/vlc/plugins/plugins.dat (Size mismatch)
backup file: systemd: /etc/systemd/timesyncd.conf (Modification time mismatch)
backup file: systemd: /etc/systemd/timesyncd.conf (Size mismatch)
systemd: 1599 total files, 1 altered file
vlc: 1061 total files, 1 altered file

I noticed that this problem occurs after about an hour that the screen lock starts but i don't have error logs...

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#11 2019-03-08 14:12:19

51ckb01
Member
Registered: 2018-09-14
Posts: 11

Re: [SOLVED] KDE - The screen locker is broken

Finally i have error log for this problem:

mar 08 08:40:53 Arch systemd-coredump[2134]: Process 840 (plasmashell) of user 1000 dumped core.
                                             
                                             Stack trace of thread 840:
                                             #0  0x00007f7d8c2dcd7f raise (libc.so.6)
                                             #1  0x00007f7d8dbd4bcf _ZN6KCrash19defaultCrashHandlerEi (libKF5Crash.so.5)
                                             #2  0x00007f7d8c2dce00 __restore_rt (libc.so.6)
                                             #3  0x00007f7d8ebbb734 _ZNK11PlasmaQuick15ContainmentView11containmentEv (libKF5PlasmaQuick.so.5)
                                             #4  0x000055a133b43adb n/a (plasmashell)
                                             #5  0x000055a133b46362 n/a (plasmashell)
                                             #6  0x000055a133b46858 n/a (plasmashell)
                                             #7  0x00007f7d8c89d9d0 _ZN11QMetaObject8activateEP7QObjectiiPPv (libQt5Core.so.5)
                                             #8  0x00007f7d8cc3c6e3 _ZN15QGuiApplication11screenAddedEP7QScreen (libQt5Gui.so.5)
                                             #9  0x00007f7d86f1f6f5 _ZN14QXcbConnection12createScreenEP18QXcbVirtualDesktopRK25xcb_randr_output_change_tP33xcb_randr_get_output_info_reply_t (libQt5XcbQpa.so.5)
                                             #10 0x00007f7d86f20444 _ZN14QXcbConnection13updateScreensEPK24xcb_randr_notify_event_t (libQt5XcbQpa.so.5)
                                             #11 0x00007f7d86ef2342 _ZN14QXcbConnection14handleXcbEventEP19xcb_generic_event_t (libQt5XcbQpa.so.5)
                                             #12 0x00007f7d86ef282e _ZN14QXcbConnection16processXcbEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5XcbQpa.so.5)
                                             #13 0x00007f7d86f1d904 n/a (libQt5XcbQpa.so.5)
                                             #14 0x00007f7d8a863a2f g_main_context_dispatch (libglib-2.0.so.0)
                                             #15 0x00007f7d8a8655e9 n/a (libglib-2.0.so.0)
                                             #16 0x00007f7d8a86562e g_main_context_iteration (libglib-2.0.so.0)
                                             #17 0x00007f7d8c8c8ce9 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #18 0x00007f7d8c871b2c _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #19 0x00007f7d8c879e36 _ZN16QCoreApplication4execEv (libQt5Core.so.5)
                                             #20 0x000055a133b23d2e n/a (plasmashell)
                                             #21 0x00007f7d8c2c9223 __libc_start_main (libc.so.6)
                                             #22 0x000055a133b241de _start (plasmashell)
                                             
                                             Stack trace of thread 910:
                                             #0  0x00007f7d8c395c21 __poll (libc.so.6)
                                             #1  0x00007f7d8a865540 n/a (libglib-2.0.so.0)
                                             #2  0x00007f7d8a86562e g_main_context_iteration (libglib-2.0.so.0)
                                             #3  0x00007f7d8c8c8d04 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #4  0x00007f7d8c871b2c _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #5  0x00007f7d8c6b5569 _ZN7QThread4execEv (libQt5Core.so.5)
                                             #6  0x00007f7d8e0ba969 n/a (libQt5Qml.so.5)
                                             #7  0x00007f7d8c6b696c n/a (libQt5Core.so.5)
                                             #8  0x00007f7d8b7b5a9d start_thread (libpthread.so.0)
                                             #9  0x00007f7d8c3a0b23 __clone (libc.so.6)
                                             
                                             Stack trace of thread 1006:
                                             #0  0x00007f7d8c3917a4 __read (libc.so.6)
                                             #1  0x00007f7d8a813971 n/a (libglib-2.0.so.0)
                                             #2  0x00007f7d8a8640b0 g_main_context_check (libglib-2.0.so.0)
                                             #3  0x00007f7d8a8654e6 n/a (libglib-2.0.so.0)
                                             #4  0x00007f7d8a86562e g_main_context_iteration (libglib-2.0.so.0)
                                             #5  0x00007f7d8c8c8d04 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #6  0x00007f7d8c871b2c _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #7  0x00007f7d8c6b5569 _ZN7QThread4execEv (libQt5Core.so.5)
                                             #8  0x00007f7d8e381e7b n/a (libQt5Quick.so.5)
                                             #9  0x00007f7d8c6b696c n/a (libQt5Core.so.5)
                                             #10 0x00007f7d8b7b5a9d start_thread (libpthread.so.0)
                                             #11 0x00007f7d8c3a0b23 __clone (libc.so.6)
                                             
                                             Stack trace of thread 971:
                                             #0  0x00007f7d8b7bbafc pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0)
                                             #1  0x00007f7d7de18c94 n/a (i965_dri.so)
                                             #2  0x00007f7d7de189b8 n/a (i965_dri.so)
                                             #3  0x00007f7d8b7b5a9d start_thread (libpthread.so.0)
                                             #4  0x00007f7d8c3a0b23 __clone (libc.so.6)
                                             
                                             Stack trace of thread 1086:
                                             #0  0x00007f7d8c395c21 __poll (libc.so.6)
                                             #1  0x00007f7d8a865540 n/a (libglib-2.0.so.0)
                                             #2  0x00007f7d8a86562e g_main_context_iteration (libglib-2.0.so.0)
                                             #3  0x00007f7d8c8c8d04 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #4  0x00007f7d8c871b2c _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #5  0x00007f7d8c6b5569 _ZN7QThread4execEv (libQt5Core.so.5)
                                             #6  0x00007f7d8c6b696c n/a (libQt5Core.so.5)
                                             #7  0x00007f7d8b7b5a9d start_thread (libpthread.so.0)
                                             #8  0x00007f7d8c3a0b23 __clone (libc.so.6)
                                             
                                             Stack trace of thread 888:
                                             #0  0x00007f7d8c3ae1e6 __libc_disable_asynccancel (libc.so.6)
                                             #1  0x00007f7d8c395c35 __poll (libc.so.6)
                                             #2  0x00007f7d8a865540 n/a (libglib-2.0.so.0)
                                             #3  0x00007f7d8a86562e g_main_context_iteration (libglib-2.0.so.0)
                                             #4  0x00007f7d8c8c8d04 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #5  0x00007f7d8c871b2c _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #6  0x00007f7d8c6b5569 _ZN7QThread4execEv (libQt5Core.so.5)
                                             #7  0x00007f7d8d151ba6 n/a (libQt5DBus.so.5)
                                             #8  0x00007f7d8c6b696c n/a (libQt5Core.so.5)
                                             #9  0x00007f7d8b7b5a9d start_thread (libpthread.so.0)
                                             #10 0x00007f7d8c3a0b23 __clone (libc.so.6)
                                             
                                             Stack trace of thread 1130:
                                             #0  0x00007f7d8c395c21 __poll (libc.so.6)
                                             #1  0x00007f7d8a865540 n/a (libglib-2.0.so.0)
                                             #2  0x00007f7d8a86562e g_main_context_iteration (libglib-2.0.so.0)
                                             #3  0x00007f7d8c8c8d04 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #4  0x00007f7d8c871b2c _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
                                             #5  0x00007f7d8c6b5569 _ZN7QThread4execEv (libQt5Core.so.5)
                                             #6  0x00007f7d6013335a _ZN15KCupsConnection3runEv (libkcupslib.so)
                                             #7  0x00007f7d8c6b696c n/a (libQt5Core.so.5)
                                             #8  0x00007f7d8b7b5a9d start_thread (libpthread.so.0)
                                             #9  0x00007f7d8c3a0b23 __clone (libc.so.6)

I hope someone can help me

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#12 2019-03-08 14:59:32

51ckb01
Member
Registered: 2018-09-14
Posts: 11

Re: [SOLVED] KDE - The screen locker is broken

Just for info i open a KDE Bug #405219

Dmesg Log:

[13476.071531] kscreenlocker_g[7366]: segfault at 200000010 ip 00007fb7445cf3bd sp 00007ffffa4766a0 error 4 in libKF5Declarative.so.5.55.0[7fb7445ce000+6000]
[13489.800664] kscreenlocker_g[7443]: segfault at 6c0003e ip 00007f25fdb9d3bd sp 00007ffef8cd7e50 error 4 in libKF5Declarative.so.5.55.0[7f25fdb9c000+6000]
[16487.286779] SUPR0GipMap: fGetGipCpu=0xb
[16488.361184] vboxdrv: ffffffffc0000020 VMMR0.r0
[16488.705878] vboxdrv: ffffffffc0175020 VBoxDDR0.r0
[16488.869265] vboxdrv: ffffffffc019d020 VBoxEhciR0.r0
[18387.071788] traps: kscreenlocker_g[8857] general protection ip:7f9af55243bd sp:7ffc9bc88250 error:0 in libKF5Declarative.so.5.55.0[7f9af5523000+6000]
[18628.162140] traps: kscreenlocker_g[8996] general protection ip:7f8acfb043bd sp:7fffcc5a1570 error:0 in libKF5Declarative.so.5.55.0[7f8acfb03000+6000]
[19175.003707] kscreenlocker_g[9070]: segfault at 31 ip 00007efc4d70d214 sp 00007fffc96676f8 error 4 in libQt5Qml.so.5.12.1[7efc4d530000+30a000]
[19641.473864] kscreenlocker_g[9230]: segfault at 31 ip 00007fd4c36b6214 sp 00007ffe39543a78 error 4 in libQt5Qml.so.5.12.1[7fd4c34d9000+30a000]
[24120.991785] kscreenlocker_g[11600]: segfault at 31 ip 00007f3461a91214 sp 00007fffe01b6848 error 4 in libQt5Qml.so.5.12.1[7f34618b4000+30a000]
[24370.258119] traps: kscreenlocker_g[11746] general protection ip:7ff73bcd23bd sp:7ffce77da0e0 error:0 in libKF5Declarative.so.5.55.0[7ff73bcd1000+6000]
[24402.426594] kscreenlocker_g[11823]: segfault at 6c00052 ip 00007fd8be44e3bd sp 00007fff48909f90 error 4 in libKF5Declarative.so.5.55.0[7fd8be44d000+6000]
[24426.569001] kscreenlocker_g[11840]: segfault at 6c00043 ip 00007f49fbb463bd sp 00007ffda51922b0 error 4 in libKF5Declarative.so.5.55.0[7f49fbb45000+6000]
[25418.950638] kscreenlocker_g[12252]: segfault at 31 ip 00007fc9b3ea8214 sp 00007ffd3e92d488 error 4 in libQt5Qml.so.5.12.1[7fc9b3ccb000+30a000]

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#13 2019-03-08 15:08:45

seth
Member
Registered: 2012-09-03
Posts: 13,062

Re: [SOLVED] KDE - The screen locker is broken

#7  0x00007f7d8c89d9d0 _ZN11QMetaObject8activateEP7QObjectiiPPv (libQt5Core.so.5)
#8  0x00007f7d8cc3c6e3 _ZN15QGuiApplication11screenAddedEP7QScreen (libQt5Gui.so.5)
#9  0x00007f7d86f1f6f5 _ZN14QXcbConnection12createScreenEP18QXcbVirtualDesktopRK25xcb_randr_output_change_tP33xcb_randr_get_output_info_reply_t (libQt5XcbQpa.so.5)
#10 0x00007f7d86f20444 _ZN14QXcbConnection13updateScreensEPK24xcb_randr_notify_event_t (libQt5XcbQpa.so.5)

It seems some update in your screen is involved, eg. if (the only?) one output unregisters for DPMS?
Can you reproduce this w/o allowing your monitor to sleep (just invoking the locker)?

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#14 2019-03-08 15:27:05

arojas
Developer
From: Spain
Registered: 2011-10-09
Posts: 1,645

Re: [SOLVED] KDE - The screen locker is broken

The backtrace you posted doesn't correspond to this issue, but to a plasmashell crash. You need to get the backtrace of kscreenlocker_greet.

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#15 2019-03-11 09:08:54

51ckb01
Member
Registered: 2018-09-14
Posts: 11

Re: [SOLVED] KDE - The screen locker is broken

Yes guys thanks!
as in the open bug of kde I was pointed out that the log related to plasmashell is not inherent in the problem of the post!
I would leave the thread open to write a possible future solution for everyone if you agree

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#16 2019-04-09 09:08:53

51ckb01
Member
Registered: 2018-09-14
Posts: 11

Re: [SOLVED] KDE - The screen locker is broken

Hi guys,
after having done some updates after the opening of this task, the described problem has not been repeated. I believe we can close it here
I also updated the kde bug that I opened about this issue
I thank everyone for their support!!!!

<3

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#17 2019-04-09 09:49:22

WorMzy
Forum Moderator
From: Scotland
Registered: 2010-06-16
Posts: 9,162
Website

Re: [SOLVED] KDE - The screen locker is broken

Please mark your thread as solved.

https://wiki.archlinux.org/index.php/Co … ow_to_post

Sakura:-
Mobo: MSI X299 TOMAHAWK ARCTIC // Processor: Intel Core i7-7820X 3.6GHz // GFX: nVidia GeForce GTX 970 // RAM: 32GB (4x 8GB) Corsair DDR4 (@ 3000MHz) // Storage: 1x 3TB HDD, 5x 1TB HDD, 2x 120GB SSD, 1x 275GB M2 SSD

Making lemonade from lemons since 2015.

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#18 2019-04-09 10:21:56

51ckb01
Member
Registered: 2018-09-14
Posts: 11

Re: [SOLVED] KDE - The screen locker is broken

WorMzy wrote:

I apologize for the hurry I have not marked solved sad
I take care immediately

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