Hi,
After an update an hour a go my system does not launch kde correctly . With error:
The current theme cannot be loaded due to …
file:///usr/share/sddm/themes/breath2/main.qml26:1 plugin cannot be loaded for module “org.kde.plasma.core”: Cannot load library /usr/lib/qt/qml/org/kde/plasma/core/libcorebingingsplugin.so: (/usr/lib//ibKF5KIOcore.so.5 undefined symbol: _ZN4KJob14percentChangedEPS_mNS_14QPrivateSignalE)
You can see error on picture.
Help would be appreciate 
Thanks
So, you rebooted the system and got that?
Could you please try this and let us know if the issue persists? Replace Breath2 with Breeze
Unfortunately the file does not exist even elsewhere on the disk
Ok, lets try to fix that. From TTY you run as your user:
sudo pacman -S sddm sddm-kcm breeze
and then try to run:
sudo touch /etc/sddm.conf.d/kde_settings.conf
and then edit it
/etc/sddm.conf.d/kde_settings.conf
and try to append this lines into it.
[Autologin]
Relogin=false
Session=
User=
[General]
HaltCommand=/usr/bin/systemctl poweroff
Numlock=none
RebootCommand=/usr/bin/systemctl reboot
[Theme]
Current=Breeze
CursorTheme=Breeze
[Users]
MaximumUid=60000
MinimumUid=1000
Sorry i can’t make this easier. Once you have done this, reboot with
systemctl reboot
All should be back to normal, hopefully.
No,
Note:
I am using btrfs over luks and I’ve already had corrupt file system. As This is my main system I am going to backup to usb and re-install it.
Thanks for help
I am having the same issue, started a few hours ago after an update.
Trying @anon89812132 fix got rid of my the error on the SDDM login screen, but when I login I am just getting a black screen and a cursor. This was also happening before the SDDM changes and only started occurring after the update.
I can manually run GTK apps and the manjaro-settings-manager by starting them from another TTY and exporting DISPLAY to be “:0”, but any KDE/Plasma applications fail with the same error, below is the error when I try to run Dolphin:
dolphin: symbol lookup error: /usr/lib/libKF5KIOCore.so.5: undefined symbol: _ZN4KJob14percentChangedEPS_mNS_14QPrivateSignalEThat is kio package related, or kio didn’t updated/loaded properly. As for the black screen can be also due to a widget you installed from Store or AUR and is not working fine with the new frameworks and need to be removed and then reinstalled, or you have video driver issue …
After last update, my sddm is ok but when I login there’s no kde taskbar and the screen is black (there’s just firefox window open) anything I can do?
Many thanks.
I’m currently testing Manjaro 21.0 Ornara which doesn’t have those issues. Strange …
Which kio package is installed?
pacman -Qo /usr/lib/libKF5KIOCore.so.5
/usr/lib/libKF5KIOCore.so.5 is owned by kio 5.80.1-1
So far I see no issues with 21.0 …
Normally KIO 5.80.1 should fix it. As an alternative you can also do:
wget https://archive.archlinux.org/packages/k/kio/kio-5.79.0-1-x86_64.pkg.tar.zst
sudo pacman -U kio-5.79.0-1-x86_64.pkg.tar.zst
After doing a fresh install update all. I don’t have any issue.
I have /usr/lib/libKF5KIOCore.so.5 appartient à kio 5.80.1-1
Note on previous install I had SDK KDE
I managed to fix my system. I not sure when or how it happened, but it looks like a few of my KDE packages switched over to the community version (i.e. end in -git) from the extras versions. It might of happened when I installed neochat.
Most of the system was using the extras versions, but I had the following installed:
kcoreaddons-git kdbusaddons-git kwindowsystem-git kcodecs-git kconfig-git kirigami2-git kquickimageeditor-git knotifications-git ki18n-git
Reinstalling the extras versions fixed my issues, i.e. running
pacman -S kcoreaddons kdbusaddons kwindowsystem kcodecs kconfig kirigami2 kquickimageeditor knotifications ki18n
and accepting the replacement of the conflicting packages.
If anyone else can confirm the following solves the issue:
then we can put it in the solution section of the wiki.
If you installed neochat-git that would explain it. That pulls in some -git dependencies, which would try to replace some of your system with git packages.
Yeah it was neochat-git, I removed it before making the other changes.
You fixed my system and made my day!
I still have the problem, looking into Xorg log, there’s a message:
Suspending AIGLX clients for VT switch
My laptop has no nvidia card, it is just intel core i3