After we upgraded our CentOS 7.0 desktops to CentOS 7.1, a critical
error in the graphical login screen has appeared on all 7.1 machines:
We have 100+ users defined in /etc/passwd, and a list of names is
presented on the initial login screen. However, it's impossible to
scroll up or down in this user list to select the desired user. The
middle mouse button seems to be disabled, so scrolling has become
impossible! One can use the left and right mouse buttons to select one
of the users in view, but no one else.
This seems definitely to be a critical bug in CentOS 7.1.
Workarounds:
1. Log in non-graphically using Ctrl-Alt-F2, then run the command startx.
2. Trim down /etc/passwd to 1 (or a few) relevant users.
--
Ole Holm Nielsen
Department of Physics, Technical University of Denmark
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