SUMMARY After installing an update coming back from holidays on 14/09/2025, the panel (and it seems Alt+F2 too) freezes after a couple of seconds of use. I can open my browser and apps, but when trying to hover, it shows the thumbnail preview, and stays there. I can't from that point on interact with the panel at all. The system remains active, as I can use my web browser and terminal STEPS TO REPRODUCE 1. Open a couple of programs 2. Hover them in panel to have the thumbnail preview 3. OBSERVED RESULT Panel fully freezes EXPECTED RESULT Panel should keep responding SOFTWARE/OS VERSIONS Linux Kernel : 6.14.0-29-generic KDE Plasma Version: 6.4.5 KDE Frameworks Version: 6.18.0 Qt Version: 6.9.2
Sorry this is happening. Can you reproduce the issue in a new clean user account on the same machine?
Created attachment 185207 [details] List of updates
Hi, yes. I've created a new user with adduser and could reproduce the bug after installing all updates from the updates tab in discover. I've attached the list of updates. Worth noting perhaps that I have a popup when I open the updates tab that reads: "E: The repository 'https://ppa.launchpadcontent.net/jfi/ppa/ubuntu noble Release' does not have a Release file. W: Updating from such a repository can't be done securely, and is therefore disabled by default. W: See apt-secure(8) manpage for repository creation and user configuration details." Also, here's a pastebin with details of what "system upgrade" contains https://pastebin.com/JvFASYfy
Also, I did try to install only the system upgrades, but got the same issue
Thanks. As this could be a packaging or local configuration issue, I'm moving the bug report to Neon for further triage.
sounds like a plasma-shell issue . could you look in the journal and report back anything odd . journalctl -b -r will give the latest entries in the journal in reverse oder
Created attachment 185398 [details] journalctl -b -r from panel crash
(In reply to Carlos De Maine from comment #6) > sounds like a plasma-shell issue . could you look in the journal and report > back anything odd . journalctl -b -r will give the latest entries in the > journal in reverse oder Hi, after further investigation it looks like it only happens if I have tooltips (aka preview of windows in the panel) enabled. No problem when disabled, but 100% when enabled. I've attached the output of journalctl -b -r in the attachments above. I'm not great at knowing what's odd, but I do see a lot of > plasmashell[2307]: kpipewire_logging: PipeWire remote error: -2