https://bugs.kde.org/show_bug.cgi?id=464850
Bug ID: 464850
Summary: "Change Background" in System Settings' Login
Screen(SDDM) not work properly and truncate
/etc/sddm.conf
Classification: Applications
Product: systemsettings
Version: 5.26.5
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: kcm_sddm
Assignee: k...@davidedmundson.co.uk
Reporter: jackyzy...@gmail.com
CC: k...@david-redondo.de, plasma-b...@kde.org
Target Milestone: ---
Created attachment 155663
--> https://bugs.kde.org/attachment.cgi?id=155663&action=edit
Image for Step 4
SUMMARY
"Change Background" in System Settings' Login Screen(SDDM) not work properly
and truncate /etc/sddm.conf
STEPS TO REPRODUCE
1. Open System Settings
2. Navigate to Login Screen(SDDM)
3. Click on "Change Background" Button over SDDM themes
4. The "Change Background" do not fully show up (only two buttons are shown )
See attachment : in the right-buttom part, these two buttons display above
other buttons.
5. At the meanwhile the cpu usage become higher
6. Then Press key `Esc` , After about 1s (not very immediately) , The "Change
Background" UI appears
7. Then do the normal change background operation.
8. The `/etc/sddm.conf` become empty After click `Apply` Button and a file
`/etc/sddm.conf.d/kde_settings.conf` is generated
9. Then Reboot , the sddm became a weird Virtual Keyboard UI (probably caused
by the empty /etc/sddm.conf file) .
My fix
1. I have to reinstall `sddm` package to restore `/etc/sddm.conf`
2. change background via editing `/usr/share/sddm/themes/<theme
name>/theme.conf.user`
OBSERVED RESULT
1. Change Background UI not work properly
2. /etc/sddm.conf is truncated. (That's a severe bug)
3. After reboot ,sddm became a weird Virtual Keyboard UI (after some search, i
found it may be maliit)
EXPECTED RESULT
1. The "Change background" UI appears normally.
1. The background of SDDM change successfully after a reboot.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 37
(available in About System)
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.102.0
Qt Version: 5.15.8
ADDITIONAL INFORMATION
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