Translations:Development/FAQs/Technical FAQ/94/en

From KDE TechBase

One other caution: Both KWin and the NETWM specification have severe difficulties handling struts with Xinerama or "merged" displays. This can result in dead areas on the screen, for instance if kicker does not span a whole edge. There is not much that can be done about this, and you should try to avoid hacks to circumvent this at this time. We hope to find a proper solution for this soon.