Dê uma olhada no HIDDEN CUSTOMIZATIONS
mencionado em xfdesktop
' README
:
If you're using the icon view, and would like to change how the text looks, you have three things you can change: the opacity (transparency) of the rounded text background, the color of the rounded text background, and the color of the text itself.
You'd want to add something like this to your
~/.gtkrc-2.0
file:style "xfdesktop-icon-view" { XfdesktopIconView::label-alpha = 75 XfdesktopIconView::selected-label-alpha = 100 XfdesktopIconView::ellipsize-icon-labels = 1 XfdesktopIconView::tooltip-size = 128 XfdesktopIconView::shadow-x-offset = 1 XfdesktopIconView::shadow-y-offset = 1 XfdesktopIconView::shadow-color = "#ff0000" XfdesktopIconView::selected-shadow-x-offset = 2 XfdesktopIconView::selected-shadow-y-offset = 2 XfdesktopIconView::selected-shadow-color = "#00ff00" XfdesktopIconView::cell-spacing = 6 XfdesktopIconView::cell-padding = 6 XfdesktopIconView::cell-text-width-proportion = 2.5 base[NORMAL] = "#00ff00" base[SELECTED] = "#5050ff" base[ACTIVE] = "#0000ff" fg[NORMAL] = "#ff0000" fg[SELECTED] = "#ff0000" fg[ACTIVE] = "#ff0000" } widget_class "*XfdesktopIconView*" style "xfdesktop-icon-view"
De acordo com esta postagem no fórum do XFCE ,
XfdesktopIconView::cell-text-width-proportion = 2.5
deve ser o que você está procurando (tente um valor mais alto).
Editar Lendo mais do tópico que eu criei, eu entendo que
XfdesktopIconView::ellipsize-icon-labels = 0
deve fazer um trabalho melhor (isso já está no trecho README
... bem, eu não percebi).