[packman] Upgrade to Packman Tumbleweed all breaks GDM login

[Terje J. Hanssen]

Hi List,

Adding the Packman Tumbleweed all repo to the current openSUSE 
Tumbleweed repositories
http://packman.inode.at/suse/openSUSE_Tumbleweed/
and then doing 'zypper dup' and reboot, results in a black screen 
instead of the GDM login to Gnome 3.12 desktop.

Somewhere there must be some incompatible packages. My current 
Tumbleweed kernel is '3.14.4-30.gbebeb6f-desktop'.

Thanks,
Terje J. Hanssen