[CentOS] CentOS 7.1 user login screen can't scroll up/down

Thu Apr 9 13:53:22 UTC 2015
Ole Holm Nielsen <Ole.H.Nielsen at fysik.dtu.dk>

> 3. Disable the user list:
> https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Desktop_Migration_and_Administration_Guide/customizing-login-screen.html

I mentioned two other workarounds myself. I prefer to wait for the 
upstream bug to be solved: 
https://bugzilla.redhat.com/show_bug.cgi?id=1184802

/Ole