I just tested, and the KDE multiscreen setup works for me now! So this bug should be closed.
Regards, Thue 2012/10/31 Adrien <adrien.grell...@laposte.net> > tag 575273 moreinfo > thanks > > Hi, > > The bug is rather old, so could you please try with new version of KDE > (4.8.4 in testing/sid) ? Otherwise I will close it. > > Regards, > > Adrien >