This is a patch from upstream kde team solving annoying bug with vlc osd transparency. ebuild attached Reproducible: Always
Created attachment 265141 [details] kstyles 4.6.1 ebuild
Created attachment 265143 [details, diff] force WA_TranslucentBackground only on QTipLabel, rather than on Qt::ToolTip type of windows.
This is my first bug here. Hope it helps somebody and patch will be soon available in portage tree :)
Thanks! The fix is included in kde-4.6.2, which comes out tomorrow, so I'll resolve this report.