Fedora 40 KDE Spin - crash to black screen

That sounds suspiciously like OOM: OOM kills Plasma 6?

It’s possible? I don’t recall my review with JournalCTL from the last time I was bothered to investigate turning up anything reaped or killed, but it’s entirely possible that I missed them. If you can advise a more efficient way to hunt through the old logs, I can see if I can turn anything up.

Though your post does indicate that this is on Plasma 6. It’s a little hazy at this point, so maybe take with a grain of salt, but I recall this behaviour extending to before the Plasma 6 update (I recall this as I had been waiting for the upgrade to hopefully resolve a few issues, I cannot positively say that this is one of them)

Do you happen to know what your RAM usage was like before the black screen?

I am unsure of exact numbers as I don’t monitor my RAM usage, though I can say that generally it does occur with what is likely slightly higher RAM usage. Most recent crash was last night, with the following running (from my memory):

  • Spotify (Flathub Repo)
  • Steam | Installing a 1-2GB game (Flathub Repo)
  • trilium (Flathub repo)
  • Okular (Fedora Linux Repo)
  • Firefox | Maybe 6 tabs open, just forums nothing intensive (Fedora Flatpaks Repo)

I’ve included the Flatpak repos used simply for clarity, I doubt they’re relevant.

System has 16GB of RAM

Let me know what else I can provide for looking into this! Thanks!

Edit: Meant to include that in regards to:

If I understand right Plasma 6 doesn’t support Session Restore, but I’m not certain if that’s a Wayland thing or with Plasma 6 in-general.

Based on the Plasma X11 and Wayland known significant issues pages, I believe the lack of session restore should only apply to Wayland, but I’m more than happy to accept if I’m incorrect.