I'd not noticed the loss of lxqt.debian.net in prior comment, until I tried to `apt source` today.
Thus I replaced package with standard debian package guiverc@dc780-deb:~$ apt-cache policy pcmanfm-qt pcmanfm-qt: Installed: 0.14.1-3+b1 Candidate: 0.14.1-3+b1 Version table: *** 0.14.1-3+b1 500 500 http://deb.debian.org/debian testing/main amd64 Packages 500 http://ftp.iinet.net.au/debian/debian testing/main amd64 Packages 100 /var/lib/dpkg/status I've now RE-CREATED the issue on debian testing (bullseye/11), though it took some play as it changing the settings a number of times as the deleted image was sometimes visible, sometimes shown as black-screen (behavior felt different to Lubuntu but that could be my memory). To achieve issue this session I had to logout (image deleted last session) & login again before 100% thread could be re-created. guiverc@dc780-deb:~$ ps -elf |grep pcmanfm 0 R guiverc 3146 2932 86 80 0 - 392369 - 11:45 ? 00:04:44 /usr/bin/pcmanfm-qt --desktop --profile=lxqt Either way that thread is now pretty steady at 100% CPU; same issue as with Lubuntu. Given it took me a bit of play on this box to accomplish (what I recall being easy on Lubuntu), maybe I'd just followed the instructions exactly in comment #5 and not re-created it thus giving debian-testing using the 0.14.2~166-g74a6f4d-1 package a faulty not-impacted (I doubt I logged out & logged back in comment #5 which is what I think allowed the issue to occur this time). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878336 Title: the pcmanfm-qt crashes on an inexistant image background To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lubuntu-default-settings/+bug/1878336/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs