(In reply to Takashi Iwai from comment #36) > There seems to have had some breakage and got fixed in TW about > xfce4-power-manager (bsc#1202125). Could you recheck? > Thanks for the pointer to the other ticket It seems that somehow pkexec was not present and was pulled in as weak dependency of gparted and gvfs-backends in todays update and the brightness control works again I'll make a SR to xfpm to add it as requirement