https://bugs.kde.org/show_bug.cgi?id=425758
--- Comment #6 from Ian Silvester <[email protected]> --- Thanks for the insight as to what might be causing this behaviour David (and consequently renaming the bug). I did some further testing to explore this line of thought. tl;dr I have good news for the KDE project but bad news for me (and perhaps others who use Lenovo USB C external docks). Plugging the external monitor direct to the HDMI port on my laptop I could not reproduce the behaviour. Connecting via DisplayPort via the Lenovo USB C external dock I can reproduce the behaviour. Ergo it is either an artifact of DisplayPort connections (perhaps someone else can test this directly whose laptop has the necessary hardware) or else it is a weird fault related to forcing video signals via USB C. For full disclosure, none of my display overlapped one another in my display configuration, and the laptop screen being disabled or enabled did not play into the behaviour. I further noted that the behaviour is only reproduced when using an external pointing device (also connected via the dock) and is related to the cursor speed (or perhaps acceleration). If I approach the bottom of the primary monitor extremely slowly the behaviour does not occur - it is only when the cursor is moving with some speed that the behaviour occurs. If you feel there's enough information to close this bug as 'Could not reproduce' (and I suggest rename it once again!) I will completely understand :o) -- You are receiving this mail because: You are watching all bug changes.
