[Solved] KDE Plasma 5 won't launch any apps after forced poweroff

rep_movsd · 2019-02-21 12:23:04

Yesterday I updated with pacman -Syyu after several weeks - it installed ton of KDE updates

After that my icon only task manager would not launch the applications that were pinned - I switched to normal task manager and back, recreated the pinned apps and it was working.

This morning my laptop shutdown due to a dead battery (the system thinks it has 15% but it dies without warning) - after that I cant use either the Menu or the pinned launchers to start anything.
Luckily I have yakuake so I'm manually running everything from there.

When I click any application in the Application Launcher menu, it momentarily appears on the taskbar and vanishes.

I killed and launched plasmashell from a console to see if any errors show - I see this when trying to launch Dolphin from the App launcher I get

org.kde.plasmaquick: Applet "Application Launcher" loaded after 0 msec
org.kde.plasmaquick: Increasing score for "Application Launcher" to 100
file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/ToolTipInstance.qml:437: ReferenceError: VirtualDesktop is not defined
file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/ToolTipInstance.qml:437: ReferenceError: VirtualDesktop is not defined
qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 3286, resource id: 83886081, major code: 142 (Unknown), minor code: 3
qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 3328, resource id: 83886081, major code: 142 (Unknown), minor code: 3
qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 3329, resource id: 83886081, major code: 142 (Unknown), minor code: 3
qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 3330, resource id: 83886108, major code: 142 (Unknown), minor code: 3

What can I do?

Thanks in advance

Last edited by rep_movsd (2019-04-15 13:57:15)

V1del · 2019-02-21 13:02:59

Can you post the result of

sudo pacman -Qkk > pacmanQkk.log

? You might also want to run

kbuildsycoca5 --noincremental

to rebuild the loader cache. In general it is advisable to reboot (or at least relogin) on major KDE updates like this to ensure all libraries loaded are up to date.

rep_movsd · 2019-02-21 20:28:27

I get a bunch of warnings with the first command on stderr

warning: cups: /etc/cups/classes.conf (Permissions mismatch)
warning: cups: /etc/cups/printers.conf (Permissions mismatch)
warning: cups: /etc/cups/subscriptions.conf (Permissions mismatch)
warning: cups: /var/cache/cups (GID mismatch)
warning: cups: /var/cache/cups/rss (GID mismatch)
warning: cups: /var/spool/cups (GID mismatch)
warning: cups: /var/spool/cups/tmp (GID mismatch)
warning: filesystem: /etc/gshadow (Permissions mismatch)
warning: filesystem: /etc/shadow (Permissions mismatch)
warning: filesystem: /srv/http (Permissions mismatch)
warning: ghc-libs: /usr/lib/ghc-8.6.3/package.conf.d/package.cache (Modification time mismatch)
warning: ghc-libs: /usr/lib/ghc-8.6.3/package.conf.d/package.cache (Size mismatch)
warning: google-talkplugin: /opt/google (UID mismatch)
warning: google-talkplugin: /opt/google (GID mismatch)
warning: icesl: /usr (UID mismatch)
warning: icesl: /usr (GID mismatch)
warning: icesl: /usr/bin (UID mismatch)
warning: icesl: /usr/bin (GID mismatch)
warning: icesl: /usr/share (UID mismatch)
warning: icesl: /usr/share (GID 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)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.alias (Modification time mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.alias (Size mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.alias.bin (Modification time mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.alias.bin (Size mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.builtin.bin (Modification time mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.dep (Modification time mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.dep (Size mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.dep.bin (Modification time mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.dep.bin (Size mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.devname (Modification time mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.softdep (Modification time mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.symbols (Modification time mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.symbols (Size mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.symbols.bin (Modification time mismatch)
warning: linux: /usr/lib/modules/4.20.10-arch1-1-ARCH/modules.symbols.bin (Size mismatch)
warning: mlocate: /var/lib/mlocate (GID mismatch)
warning: mlocate: /var/lib/mlocate (Permissions mismatch)
warning: networkmanager: /etc/NetworkManager/system-connections (Permissions mismatch)
warning: openvpn-update-resolv-conf: /etc/openvpn/update-resolv-conf (Permissions mismatch)
warning: openvpn-update-resolv-conf: /etc/openvpn/update-resolv-conf (Modification time mismatch)
warning: openvpn-update-resolv-conf: /etc/openvpn/update-resolv-conf (Size mismatch)
warning: qt5-jsbackend: /usr/lib/libQt5V8.prl (Permissions mismatch)
warning: qt5-jsbackend: /usr/lib/pkgconfig/Qt5V8.pc (Permissions mismatch)
warning: qt5-jsbackend: /usr/lib/qt/mkspecs/modules/qt_lib_v8.pri (Permissions mismatch)
warning: samba: /var/lib/samba/private (Permissions mismatch)
warning: systemd: /var/log/journal (GID mismatch)
warning: vlc: /usr/lib/vlc/plugins/plugins.dat (Modification time mismatch)
warning: vlc: /usr/lib/vlc/plugins/plugins.dat (Size mismatch)

The file itself has many entries with "0 altered files", if I grep the lines that dont match this I get:

backup file: apache: /etc/httpd/conf/httpd.conf (Modification time mismatch)
backup file: apache: /etc/httpd/conf/httpd.conf (Size mismatch)
backup file: apache: /etc/httpd/conf/magic (Modification time mismatch)
backup file: apache: /etc/httpd/conf/magic (Size mismatch)
backup file: apache: /etc/httpd/conf/extra/httpd-ssl.conf (Modification time mismatch)
backup file: apache: /etc/httpd/conf/extra/httpd-ssl.conf (Size 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, 7 altered files
backup file: dhcpcd: /etc/dhcpcd.conf (Modification time mismatch)
backup file: dhcpcd: /etc/dhcpcd.conf (Size mismatch)
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/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)
filesystem: 113 total files, 3 altered files
ghc-libs: 1370 total files, 1 altered file
backup file: glibc: /etc/locale.gen (Modification time mismatch)
backup file: glibc: /etc/locale.gen (Size mismatch)
google-talkplugin: 252 total files, 1 altered file
backup file: grub: /etc/default/grub (Modification time mismatch)
backup file: grub: /etc/default/grub (Size mismatch)
backup file: i8kutils: /etc/i8kutils/i8kmon.conf (Modification time mismatch)
icesl: 479 total files, 3 altered files
backup file: iptables: /etc/iptables/iptables.rules (Modification time mismatch)
backup file: iptables: /etc/iptables/iptables.rules (Size mismatch)
java-runtime-common: 21 total files, 2 altered files
backup file: libmagick6: /etc/ImageMagick-6/delegates.xml (Modification time mismatch)
backup file: libmagick6: /etc/ImageMagick-6/delegates.xml (Size mismatch)
backup file: libmagick6: /etc/ImageMagick-6/type-dejavu.xml (Modification time mismatch)
backup file: libmagick6: /etc/ImageMagick-6/type-dejavu.xml (Size mismatch)
backup file: libmagick6: /etc/ImageMagick-6/type-ghostscript.xml (Modification time mismatch)
backup file: libmagick6: /etc/ImageMagick-6/type-ghostscript.xml (Size mismatch)
backup file: libmagick6: /etc/ImageMagick-6/type.xml (Modification time mismatch)
backup file: libmagick6: /etc/ImageMagick-6/type.xml (Size mismatch)
backup file: libpwquality: /etc/security/pwquality.conf (Modification time mismatch)
backup file: libpwquality: /etc/security/pwquality.conf (Size mismatch)
backup file: libxcursor: /usr/share/icons/default/index.theme (Modification time mismatch)
backup file: libxcursor: /usr/share/icons/default/index.theme (Size mismatch)
linux: 6449 total files, 9 altered files
backup file: mariadb: /etc/mysql/my.cnf (Modification time mismatch)
backup file: mariadb: /etc/mysql/my.cnf (Size mismatch)
backup file: mdadm: /etc/mdadm.conf (Modification time mismatch)
backup file: mdadm: /etc/mdadm.conf (Size mismatch)
backup file: mkinitcpio: /etc/mkinitcpio.conf (Modification time mismatch)
backup file: mkinitcpio: /etc/mkinitcpio.conf (Size mismatch)
backup file: mlocate: /etc/updatedb.conf (Modification time mismatch)
backup file: mlocate: /etc/updatedb.conf (Size mismatch)
mlocate: 141 total files, 1 altered file
backup file: networkmanager: /etc/NetworkManager/NetworkManager.conf (Modification time mismatch)
backup file: networkmanager: /etc/NetworkManager/NetworkManager.conf (Size mismatch)
networkmanager: 479 total files, 1 altered file
backup file: openssh: /etc/ssh/ssh_config (Modification time mismatch)
backup file: openssh: /etc/ssh/ssh_config (Size mismatch)
openvpn-update-resolv-conf: 3 total files, 1 altered file
backup file: pacman: /etc/makepkg.conf (Modification time mismatch)
backup file: pacman: /etc/makepkg.conf (Size mismatch)
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/security/pam_env.conf (Modification time mismatch)
backup file: pam: /etc/security/pam_env.conf (Size mismatch)
backup file: pinentry: /usr/bin/pinentry (Modification time mismatch)
backup file: pinentry: /usr/bin/pinentry (Size mismatch)
backup file: pulseaudio: /etc/pulse/default.pa (Modification time mismatch)
backup file: pulseaudio: /etc/pulse/default.pa (Size mismatch)
qt5-jsbackend: 30 total files, 3 altered files
samba: 969 total files, 1 altered file
backup file: sane: /etc/sane.d/dll.conf (Modification time mismatch)
backup file: sane: /etc/sane.d/dll.conf (Size mismatch)
backup file: sddm: /etc/pam.d/sddm (Modification time mismatch)
backup file: sddm: /etc/pam.d/sddm (Size mismatch)
backup file: slim: /etc/slim.conf (Modification time mismatch)
backup file: slim: /etc/slim.conf (Size mismatch)
backup file: sudo: /etc/sudoers (Modification time mismatch)
backup file: sudo: /etc/sudoers (Size mismatch)
backup file: systemd: /etc/systemd/journald.conf (Modification time mismatch)
backup file: systemd: /etc/systemd/journald.conf (Size mismatch)
backup file: systemd: /etc/systemd/logind.conf (Modification time mismatch)
backup file: systemd: /etc/systemd/logind.conf (Size mismatch)
backup file: systemd: /etc/systemd/system.conf (Modification time mismatch)
backup file: systemd: /etc/systemd/system.conf (Size mismatch)
systemd: 1600 total files, 1 altered file
backup file: texlive-core: /etc/texmf/web2c/fmtutil.cnf (Modification time mismatch)
backup file: texlive-core: /etc/texmf/web2c/fmtutil.cnf (Size mismatch)
backup file: upower: /etc/UPower/UPower.conf (Modification time mismatch)
backup file: upower: /etc/UPower/UPower.conf (Size mismatch)
backup file: vim-runtime: /etc/vimrc (Modification time mismatch)
backup file: vim-runtime: /etc/vimrc (Size mismatch)
vlc: 1061 total files, 1 altered file

running

 kbuildsycoca5 --noincremental

prints

$ kbuildsycoca5 --noincremental
kbuildsycoca5 running...
kf5.kservice.sycoca: Parse error in  "/home/rep/.config/menus/applications-merged/xdg-desktop-menu-dummy.menu" , line  1 , col  1 :  "unexpected end of file"
"KConfigIni: In file /usr/share/applications/electrum.desktop, line 6: " "Invalid escape sequence \"\\\"\"."
"KConfigIni: In file /usr/share/applications/electrum.desktop, line 6: " "Invalid escape sequence \"\\\"\"."
"KConfigIni: In file /usr/share/applications/electrum.desktop, line 21: " "Invalid escape sequence \"\\\"\"."
"KConfigIni: In file /usr/share/applications/electrum.desktop, line 21: " "Invalid escape sequence \"\\\"\"."

seth · 2019-02-21 21:21:32

Is this (inadvertedly) a wayland session?

echo $XDG_SESSION_TYPE

https://bugs.kde.org/show_bug.cgi?id=396316

rep_movsd · 2019-02-21 22:04:32

So I managed to solve it

I backed up the .config directory, made a blank one and rebooted, I got a default desktop...
Then I copied the backed up .config into the new one and rebooted

Now all is well!

Thanks for your help

rep_movsd · 2019-02-22 07:50:44

So it hasn't really gotten solved - It has something to do with the compositor - playing with the compositor config on the System Settings made it work, but after rebooting afain it doesn't.

I tried switching from nvidia to nouveau, doesn't help.
This seems like some wayland related problem - how do I completely disable wayland?

rep_movsd · 2019-02-22 07:51:37

seth wrote:

Is this (inadvertedly) a wayland session?
echo $XDG_SESSION_TYPE
https://bugs.kde.org/show_bug.cgi?id=396316

From a konsole I get:

rep ~  $ echo $XDG_SESSION_TYPE
tty

seth · 2019-02-22 07:57:49

That's a "console", please try the command in your yakuake.

rep_movsd · 2019-02-22 08:52:23

I am running that in yakuake - it shows "tty"

Meanwhile, I just selected the second last version of the packages that were related to X, KDE plasma, wayland and nvidia and downgraded with pacman -U

I got a blank screen - then I did a pacman -Syyu again, it upgraded the kernel and reinstalled the latest versions of the packages once more.

After that it seems to be working OK, even the backlight hotkeys that were not working beforee do now.
Not sure what exactly was wrong.

Will see if it continues to work

Last edited by rep_movsd (2019-02-22 08:56:56)

V1del · 2019-02-22 09:52:59

How are you starting KDE? That command should not show TTY if you are in a proper session.

rep_movsd · 2019-02-22 09:57:40

I just have:

exec startkde

in ~/.xinitrc

V1del · 2019-02-22 10:04:23

That's wrong and will not properly set up your dbus session, see the second blue note in https://wiki.archlinux.org/index.php/Xinit#xinitrc

Last edited by V1del (2019-02-22 10:04:44)

rep_movsd · 2019-02-22 10:16:50

This is my .xinitrc

#!/bin/sh
#
# ~/.xinitrc
#
# Executed by startx (run your window manager from here)

if [ -d /etc/X11/xinit/xinitrc.d ]; then
  for f in /etc/X11/xinit/xinitrc.d/*; do
    [ -x "$f" ] && . "$f"
  done
  unset f
fi

exec startkde

#exec startfluxbox
# exec gnome-session
#exec wmaker
#exec startxfce4
#exec enlightenment_start
#exec icewm
#exec icewm-session

The following scripts exist

rep /etc/X11/xinit/xinitrc.d  $ ls
40-libcanberra-gtk-module.sh  50-systemd-user.sh
rep /etc/X11/xinit/xinitrc.d  $ cat 50-systemd-user.sh
#!/bin/sh

systemctl --user import-environment DISPLAY XAUTHORITY

if command -v dbus-update-activation-environment >/dev/null 2>&1; then
        dbus-update-activation-environment DISPLAY XAUTHORITY
fi
rep /etc/X11/xinit/xinitrc.d  $ cat 40-libcanberra-gtk-module.sh
#!/bin/sh

case "${DESKTOP_SESSION-}" in
  gnome*) # Done by gnome-settings-daemon
  ;;
  *)
    # Extra check in case DESKTOP_SESSION is not set correctly
    if [ -z "${GNOME_DESKTOP_SESSION_ID-}" ]; then
      GTK_MODULES="${GTK_MODULES:+$GTK_MODULES:}canberra-gtk-module"
      export GTK_MODULES
    fi
  ;;
esac
rep /etc/X11/xinit/xinitrc.d  $

I just rebooted again and the original problem recurred - nothing launches from the Appl launcher

Last edited by rep_movsd (2019-02-22 10:18:17)

rep_movsd · 2019-02-22 10:23:17

FWIW I installed Arch in 2013 and I have migrated the same install over 3 hard disks and 2 laptops without reinstalling - so there may be a lot of barnacles so to speak - but I've never had any major issues except the non free NVIDIA driver once and wpa_supplicant not connecting another time.

This is the first time I'm having some GUI based problem

seth · 2019-02-22 12:18:45

This isn't exactly a GUI issue - let's see

loginctl show-session $XDG_SESSION_ID
loginctl session-status

rep_movsd · 2019-02-22 12:30:08

I set up my pacman mirror list to point to : https://archive.archlinux.org/repos/201 … o/os/$arch and downgraded everything to the last day I knew it was working
It is back to normal now for sure...

But anyway:

rep ~  $ loginctl show-session $XDG_SESSION_ID
Id=1
User=1000
Name=rep
Timestamp=Fri 2019-02-22 17:33:45 IST
TimestampMonotonic=5263284
VTNr=1
Seat=seat0
TTY=tty1
Remote=no
Service=login
Scope=session-1.scope
Leader=662
Audit=1
Type=tty
Class=user
Active=yes
State=active
IdleHint=no
IdleSinceHint=1550837024465859
IdleSinceHintMonotonic=4040733
LockedHint=no

-----

rep ~  $ loginctl session-status
1 - rep (1000)
           Since: Fri 2019-02-22 17:33:45 IST; 24min ago
          Leader: 662 (login)
            Seat: seat0; vc1
             TTY: tty1
         Service: login; type tty; class user
           State: active
            Unit: session-1.scope
                  ├─ 662 login -- rep
                  ├─ 865 /bin/sh /usr/bin/startx
                  ├─1020 xinit /home/rep/.xinitrc -- /etc/X11/xinit/xserverrc :0 vt1 -keeptty -auth /tmp/serverauth.EejJa8lZtQ
                  ├─1021 /usr/lib/Xorg -nolisten tcp :0 vt1 -keeptty -auth /tmp/serverauth.EejJa8lZtQ
                  ├─1024 /bin/sh /usr/bin/startkde
                  ├─1072 /usr/lib/kf5/start_kdeinit --kded +kcminit_startup
                  ├─1073 kdeinit5: Running...
                  ├─1074 /usr/lib/kf5/klauncher --fd=9
                  ├─1077 kded5 [kdeinit5]
                  ├─1096 /usr/bin/kaccess
                  ├─1098 kwrapper5 /usr/bin/ksmserver
                  ├─1099 /usr/bin/ksmserver
                  ├─1119 /usr/bin/kwin_x11
                  ├─1125 /usr/bin/krunner
                  ├─1127 /usr/bin/plasmashell
                  ├─1131 /usr/lib/polkit-kde-authentication-agent-1
                  ├─1133 /usr/bin/xembedsniproxy
                  ├─1139 /usr/bin/gmenudbusmenuproxy
                  ├─1141 /usr/lib/kdeconnectd
                  ├─1156 /usr/bin/yakuake
                  ├─1158 /usr/lib/geoclue-2.0/demos/agent
                  ├─1160 /usr/lib/org_kde_powerdevil
                  ├─1166 /usr/bin/kmix --keepvisibility
                  ├─1269 /bin/bash
                  ├─1309 /usr/bin/ksysguardd
                  ├─1320 /usr/bin/redshift -l 12.97 77.59 -t 3750 3750 -b 1 0.8 -g 0.85 0.85 0.8 -r
                  ├─1344 /usr/lib/thunderbird/thunderbird
                  ├─1397 /usr/lib/chromium/chromium --ppapi-flash-version=32.0.0.142 --ppapi-flash-path=/usr/lib/PepperFlash/libpepflashplayer.so --high-dpi-support=1 --force-device-scale-factor=1.32 --enable-dom-distiller
                  ├─1416 /usr/lib/chromium/chrome-sandbox /usr/lib/chromium/chromium --type=zygote --force-device-scale-factor=1.32 --ppapi-flash-path=/usr/lib/PepperFlash/libpepflashplayer.so --ppapi-flash-version=32.0.0.142
                  ├─1417 /usr/lib/chromium/chromium --type=zygote --force-device-scale-factor=1.32 --ppapi-flash-path=/usr/lib/PepperFlash/libpepflashplayer.so --ppapi-flash-version=32.0.0.142
                  ├─1423 /usr/lib/chromium/chromium --type=zygote --force-device-scale-factor=1.32 --ppapi-flash-path=/usr/lib/PepperFlash/libpepflashplayer.so --ppapi-flash-version=32.0.0.142
                  ├─1446 /usr/lib/chromium/chromium --type=gpu-process --field-trial-handle=10059167755546894502,7876330868883843057,131072 --enable-features=ExpensiveBackgroundTimerThrottling,FontCacheScaling,ImageCaptureAPI,MemoryCoordinator,NewPrintPreview,NewStyleNotifications,OmniboxSpeculativeServiceWorkerSt>
                  ├─1519 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─1523 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─1571 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─1596 /usr/lib/chromium/chromium --type=utility --field-trial-handle=10059167755546894502,7876330868883843057,131072 --enable-features=ExpensiveBackgroundTimerThrottling,FontCacheScaling,ImageCaptureAPI,MemoryCoordinator,NewPrintPreview,NewStyleNotifications,OmniboxSpeculativeServiceWorkerStartO>
                  ├─1619 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─1666 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─1681 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─1686 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
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                  ├─1754 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─1769 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─1772 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─1822 /usr/bin/plasma-browser-integration-host chrome-extension://cimiefiiaegbelhefglklhhakcgmhkai/
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                  ├─1852 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─1865 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─1916 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─2075 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─2221 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─3116 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─3681 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─3762 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─3786 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─4005 /usr/lib/chromium/chromium --type=renderer --enable-experimental-web-platform-features --enable-webgl-draft-extensions --force-device-scale-factor=1.32 --reduced-referrer-granularity --enable-webrtc-srtp-aes-gcm --enable-webrtc-srtp-encrypted-headers --enable-webrtc-stun-origin --field-tri>
                  ├─4214 /bin/bash
                  ├─4224 kate mirrorlist
                  ├─4290 loginctl session-status
                  └─4291 less

Feb 22 17:33:45 archaic systemd[1]: Started Session 1 of user rep.
Feb 22 17:33:45 archaic login[662]: LOGIN ON tty1 BY rep
lines 1-71/71 (END)

rep_movsd · 2019-02-23 16:35:44

More updates - So the problem comes and goes intermittently after rebooting.

I noticed one thing - After the screen goes blank when X loads, the system seems to be paused - nothing happens forever - if I move the mouse, the disk comes on and the KDE plasma logo appears.

If I don't wait a few seconds before moving the mouse, the problem appears. if I wait then it boots normally.

How do I see what's happening at that time?
is there a way to redirect everything that happens on the primary root terminal to a file?

I cant see anything in journalctl except a pause for the network-timesyncd service timing out once and something to do with kernel crng
Why would it wait for a mouse movement - is it waiting for entropy by any chance?

Are these two problems even related?

seth · 2019-02-23 17:23:28

Well, let's see https://wiki.archlinux.org/index.php/Haveged

rep_movsd · 2019-02-23 18:14:39

yes - installing haveged gets rid of the boot time pause - looks like it was an entropy issue.

The original problem remains though....

I'm trying to downgrade back to January 1st to see if it helps

rep_movsd · 2019-03-05 14:55:39

Update: I've reverted to 01/01/2019 and its working OK

I'm too busy to worry right now, I will run a full upgrade in a few weeks

rep_movsd · 2019-04-15 13:56:11

Updating after a few weeks solved the issue

oindividuo · 2023-02-12 18:20:56

I know this post is old, but I had the same issue and found a solution. Through try and error, I isolated the problem to the "~/.config/plasma-org.kde.plasma.desktop-appletsrc" file. In there, screenMapping was set to a value of about 1.5M characters. I don't know how this happened, but clearing that single value was enough to solve it. I'm not sure what it does, but everything seems fine and restored so far. I hope this is useful for someone in the same situation but unwilling to completely delete the config folder.

leer_key · 2023-02-19 06:13:11

oindividuo wrote:

I hope this is useful for someone in the same situation

Thank you! This worked for me, running Manjaro—I appreciate you posting this even though the issue had already been solved!

How did you come to the conclusion that this was the problem?

oindividuo · 2023-02-20 19:31:34

leer_key wrote:

How did you come to the conclusion that this was the problem?

I'm glad it was helpful! As the OP mentioned, deleting the ".config" folder fixed the issue. So basically I tried deleting files in there that seemed relevant (i.e. kde* or plasma*) until the issue was gone. That's how I found the huge appletsrc file.

Note that I had to re-login each time, so I was deleting a few at a time.

Skeptical · 2023-04-02 09:35:58

oindividuo wrote:

I isolated the problem to the "~/.config/plasma-org.kde.plasma.desktop-appletsrc" file. In there, screenMapping was set to a value of about 1.5M characters.

I just created an account to thank you for this. It happened to me right after installing FH5, no idea why that game breaks plasma.

Arch Linux

#1 2019-02-21 12:23:04

[Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#2 2019-02-21 13:02:59

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#3 2019-02-21 20:28:27

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#4 2019-02-21 21:21:32

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#5 2019-02-21 22:04:32

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#6 2019-02-22 07:50:44

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#7 2019-02-22 07:51:37

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#8 2019-02-22 07:57:49

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#9 2019-02-22 08:52:23

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#10 2019-02-22 09:52:59

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#11 2019-02-22 09:57:40

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#12 2019-02-22 10:04:23

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#13 2019-02-22 10:16:50

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#14 2019-02-22 10:23:17

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#15 2019-02-22 12:18:45

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#16 2019-02-22 12:30:08

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#17 2019-02-23 16:35:44

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#18 2019-02-23 17:23:28

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#19 2019-02-23 18:14:39

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#20 2019-03-05 14:55:39

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#21 2019-04-15 13:56:11

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#22 2023-02-12 18:20:56

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#23 2023-02-19 06:13:11

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#24 2023-02-20 19:31:34

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

#25 2023-04-02 09:35:58

Re: [Solved] KDE Plasma 5 won't launch any apps after forced poweroff

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