https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=850116
Due to the above issue I'm not going to fix this for stretch. I'm about to make a policy upload for unstable that will be the basis of a proposed update to stretch to fix a number of issues. After I get that resolved I will upload the new upstream policy to unstable and then work on getting gdm3 operating correctly in unstable. For stretch sddm is the option I recomment. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/