I have had these problems and solved them for me by launching inkscape from the sh shell like:
unset GTK_IM_MODULE && inkscape
I am also using Kubuntu and this problem has persisted throughout distribution upgrades.
I have had these problems and solved them for me by launching inkscape from the sh shell like:
unset GTK_IM_MODULE && inkscape
I am also using Kubuntu and this problem has persisted throughout distribution upgrades.