https://bugs.kde.org/show_bug.cgi?id=450337
--- Comment #8 from Krzysztof Kundzicz <athantor+kdeb...@athi.pl> --- (In reply to Dick Tracey from comment #6) > Thanks! Can you try setting the primary monitor that is being turned on/off > to be on the right in Display Configuration, and doing the experiment again? > I only get the crash if that monitor is located at (1920,0) and not (0,0). Yeah, it doesn't matter if I put the external display on the left or right in the kscreen, nor if I make my laptop's display primary — it still messes the displays up. I've found the culprit of the 'disconnection' behavior: it's the nvidia 510 drivers. Xrandr output every 0.2s in loop, while turning the display off and the back on: HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 697mm x 392mm HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 697mm x 392mm HDMI-0 disconnected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 0mm x 0mm HDMI-0 disconnected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 0mm x 0mm HDMI-0 connected (normal left inverted right x axis y axis) HDMI-0 connected (normal left inverted right x axis y axis) HDMI-0 connected (normal left inverted right x axis y axis) HDMI-0 connected (normal left inverted right x axis y axis) HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 697mm x 392mm HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 697mm x 392mm HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 697mm x 392mm HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 697mm x 392mm It seems that disconnection is being reported while turning the display back **ON**. I've downgraded the nvidia drivers back to 495.46 and no disconnection is reported and plasma behaves as expected. -- You are receiving this mail because: You are watching all bug changes.
