https://bugs.kde.org/show_bug.cgi?id=485098
Bug ID: 485098
Summary: No GSettings schemas are installed on the system +
Core Dump when logging in from SDDM (black screen)
Classification: Plasma
Product: xdg-desktop-portal-kde
Version: 6.0.3
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: alphaj...@tuta.io
CC: aleix...@kde.org, jgrul...@redhat.com, n...@kde.org
Target Milestone: ---
Created attachment 168185
--> https://bugs.kde.org/attachment.cgi?id=168185&action=edit
First xdg-desktop-portal issue
SUMMARY
One month ago, I managed to install Arch Linux with Plasma 6 on Wayland on my
laptop (Intel GPU) following the steps from the Arch Wiki. I did it on an
external SSD to check for potential issues. It went smooth and I could login
without issues.
Yesterday I followed the same exact procedure with my real SSD, but I was faced
with a black screen after login. The only things I could see and interact with
were the Plasma greeter and a Yakuake popup failing to load a skin.
By inspecting the journal, I saw many orange warnings related to Kwin_wayland:
- Could not find color scheme "Breeze Light" falling back to BreezeLight
- kf.plasma.core: Could not locate plasma theme "default" in
plasma/desktoptheme/
However, I also noticed a red messages:
- org.kde.plasma.ksplashqml: Failed to resolve package url QUrl("")
- systemd: failed to start Splash screen show during boot.
- yakuake: Could not find color scheme "Breeze Light" falling back to
BreezeLight
- yakuake: kf.notifications: No event config could be found for event id
"messageCrit
- yakuake: QFSFileEngine::open: No file name specified
- yakuake: org.kde.konsole.keytranslator: Unable to load translator "default"
- disable-paste: /dev/tty2: Permission denied
- disable-paste: Oh, oh, it's an error! possibly I die!
- xdg-desktop-portal: No GSettings schemas are installed on the system
The latter even resulted in a series of core dumps soon after.
I could not find the root cause of the issue. My workaround was to copying the
files from the "test" SDD from one month ago to the broken SSD.
When I updated, the system kept working, so it does not seem related to a
recent package update.
STEPS TO REPRODUCE
1. Install Plasma 6 on Wayland using Arch Linux following the steps in the Arch
Wiki
2. Try to login, the screen is black except for the greeter
THINGS TRIED
- Check for missing packages: breeze, gsettings-desktop-schemas, layer-shell-qt
were all installed, reinstalling them or switching from sddm to sddm-git and
vice versa did not fix the issue
- Check for drivers: this is not a black screen due to Nvidia modeset not being
enabled
- Check for broken confs: I reproduced the same error with both Wayland and
X11, a new user, and stock global configurations without success
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6
KDE Plasma Version: 6
KDE Frameworks Version: 6
Qt Version: 6
ADDITIONAL INFORMATION
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