do you have minimized windows?

(In reply to Martin Gräßlin from comment #1)
> do you have minimized windows?

No.

then I'm not able to reproduce the issue. I only get repaints for minimized windows with auto hiding panels.

Or could it be that something in the panel would be animating? E.g. a progress bar on the task bar, maybe even something which reacts on mouse motion?

(In reply to Martin Gräßlin from comment #3)
> then I'm not able to reproduce the issue. I only get repaints for minimized
> windows with auto hiding panels.
> 
> Or could it be that something in the panel would be animating? E.g. a
> progress bar on the task bar, maybe even something which reacts on mouse
> motion?

It seems to be xeyes (not minimized but behind other windows) that triggers this.

> It seems to be xeyes (not minimized but behind other windows) that triggers this.

Nice one ;-) That reminds me of the early days of KWin 4.x when I used xeyes to detect whether the compositor is frozen.

Anyway, I think we don't have a bug here, but rather expected behavior. Xeyes of course triggers repaints when the mouse is moved.

I still consider this a bug as it only happens with auto-hide enabled.

I don't understand. xeyes triggers repaints, whether it is behind windows or not. That triggers a repaint in the compositor, which is also expected. So what should be wrong here?

(In reply to Martin Gräßlin from comment #7)
> I don't understand. xeyes triggers repaints, whether it is behind windows or
> not. That triggers a repaint in the compositor, which is also expected. So
> what should be wrong here?

If auto-hide is disabled I only get a full repaint every second or so.

Is this still an issue?

(In reply to Vlad Zagorodniy from comment #9)
> Is this still an issue?

I can't confirm the observations anymore, so probably not.