Public bug reported:
I describe whole the issue on this link:
https://askubuntu.com/q/1238736/305703
But I describe here too:
1. I right-click on desktop and choose desktop properties to change the
background image
2. choose the background image and close all opened windows
3. permanently delete the set image from my PC
4. re-open the desktop properties to change the Wallpaper mode
5. suddenly the desktop properties crashed and a black tiny window alert me
6. I didn't read it and press yes
7. after it the pcmanfm-qt and many system apps doesn't work (doesn't work
means dead completely, clicking on them or running from terminal is like doing
nothing)
8. then by the suggestion of AskUbuntu user I change the background image from
terminal by changing the ~/.config/pcmanfm-qt/lxqt/settings.conf Wallpaper
variable
9. then everything became ok
So I believe crashing pcmanfm-qt just for an nonexistent image is a bug,
it should show the solid background color or something else.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: lubuntu-default-settings 20.04.4
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: LXQt
Date: Wed May 13 09:48:47 2020
InstallationDate: Installed on 2020-05-03 (10 days ago)
InstallationMedia: Lubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
SourcePackage: lubuntu-default-settings
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: lubuntu-default-settings (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1878336
Title:
the pcmanfm-qt crashes on an inexistant image background
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