https://bugs.kde.org/show_bug.cgi?id=490469
--- Comment #2 from Oliver Freyermuth <o.freyerm...@googlemail.com> --- Thanks for checking! I delved into this and can explain why KUbuntu does not appear to be affected: They did not fetch the new patch release 5.27.11.1 of plasma-workspace completely, but only backported parts of it. Hence, they do not carry https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/4382 in full. For that reason, Ubuntu does not use a pattern such as: /run/user/1000/iceauth_someRandomString for their ICE auth files, but just the default: /run/user/1000/ICEauthority Hence, it works without the variable being defined due to the fallback to the "default name". Note that the MR I linked above also added the corresponding code to ksmserver to set that variable, which explains why Ubuntu misses that, as they did not pull in the full MR / did not pull 5.27.11.1 completely. So it appears that to reproduce that, 5.27.11.1 must be used, while 5.27.11 is not affected. Sadly, Plasma itself did not report the ".1" version and the bug tracker does not allow to select it, so I did not include this critical detail in my report. Do you have the chance to re-test with 5.27.11.1? -- You are receiving this mail because: You are watching all bug changes.