18.10 Lightdm works but GDM works only with the mentioned hack/workaround (but with slowdowns):
ExecStartPre=/usr/bin/xinit /usr/share/gdm/generate-config
18.10 Lightdm works but GDM works only with the mentioned hack/workaround (but with slowdowns):
ExecStartPre= /usr/bin/ xinit /usr/share/ gdm/generate- config