Hi all,
I just wanted to share the result/solution of my many hours investigation.
Symptom: Plasmashell / Workspace needs 10 to 15 seconds more to load after logging in via SDDM. This happened with no update all of a sudden.
Disabling autostart programs, checking (disabling/enabling by rename) of .config files, disabling startup screen, … all of the many tips in the web did not help. Furthermore the “journalctl -b 0” output just had a 10 second gap - nothing in there, no hint, no severe errors.
Long story short: in the end I found that Klipper - the very useful clipboard manager - was the culprit. Somehow I managed to fill up it’s storage file in .local/share/klipper to somewhat around 300MB (may be copied a giant logfile - don’t know).
After deleting this file startup of plasmashell / plasmaworkspace was fast again.
I just want to share this just in case somebody else is struggling with slow startup times. This is a very hard to examine topic and my solution can be checked easily.
Hope it helps anybody while googling for a solution