https://bugs.kde.org/show_bug.cgi?id=467422
--- Comment #8 from przem.form...@gmail.com --- Hello Nate, Sorry for the long silence; I've been overtaken by house renovation. Your ping mobilized me to make out some spare time and check the configurations. Turns out, the culprit was second monitor's DP->HDMI Cable. Switching it to a HDMI->HDMI (same with HDMI->DVI) fixed the issue (which never happened on Windows, weirdly; hence I didn't assume t could be a cable issue). Sorry for bothering; this ticket can be closed. I'll stay with this config until I'll get a new DP->HDMI cable. -- You are receiving this mail because: You are watching all bug changes.