hey Dave, thanks for reply!
I got NVidia FX4500 Quattro 512MB PCIe Card in my PowerMac. I run Debian 8 on my ibook (ATI 9550) with lightDM and i3 window-manager, not on the PowerMac.
I remember, there are some boot-Options “ofonly” or something like that. Maybe I should try this?
What Advantages does the netinstaller have? Does it look exactly like the full ubuntu Mate Version, after install/Dl the components?
I remember installing a “MATE” Desktop from Debian 8 installer -but MATE does not look like “ubuntu Mate” from a “ubuntu Mate distro”…