https://bugs.kde.org/show_bug.cgi?id=484254

Nick <mobile.har...@outlook.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REPORTED                    |CONFIRMED
     Ever confirmed|0                           |1

--- Comment #3 from Nick <mobile.har...@outlook.com> ---
Hey - I just duplicated it! Your instructions were spot-on. Just to confirm:

I'm on a Thinkpad X390 / Neon / Wayland / Intel graphics.
Hover mouse over the brightness system tray icon.
Use two-finger scroll on touchpad to increase brightness to 100%
Quickly swipe down with two fingers and see the brightness indicate 0%

However, at this point the screen is not completely dim. Confirm this by using
the laptop brightness down button. One press of this and the screen goes
immediately dark (i.e. 0% brightness).

So it seems Plasma is reacting quickly to a fast scroll from the user, but the
physical backlight is not keeping up.

Thanks for reporting this bug. Marking as confirmed. Thanks, Nick.

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