On Tue, 11 May 2010, Rex Dieter wrote:
On May 11, 2010, at 3:58 PM, Orion Poplawski <orion(a)cora.nwra.com>
> Every once in a while with various hardware I see empty boxes left
> under where a KDE popup window appeared and went away and the app
> doesn't redraw right away. Is there a general bug filed somewhere for
> this? What is responsible?
> Individual video drivers?
Video driver generally
Judging by what I've seen, more than one video driver seems to be
afflicted by this problem. I see it on a PC that uses the X.Org Intel
driver as well as another PC that uses the binary-blob NVidia driver. Has
anyone noticed this problem with any other video drivers?
In my experience, the empty box is invariably left in the space that had
momentarily displayed a tooltip for one of the widgets in a Plasma panel.
I'll happily disable those tooltips if/when an option is provided to do
so. In the meantime, I frequently use the Show Desktop widget to refresh
my desktop and clean up the empty boxes.