New answers tagged login-manager
Turns out it's because the screen "copies" the laptop screen - apparently both are enabled, even though one is closed under the lid. In my case, the fix was easy: edit /etc/lxdm/LoginReady and add a xrandr line you want: In my case: FILE: /etc/lxdm/LoginReady #!/bin/sh xrandr --output VGA1 --mode 1920x1080 --rate 60.00 --same-as LVDS1 --output LVDS1 ...
It's a mechanism that prevents you to set a password that is too weak. Your password strength should be at least "Fair" in order to unlock the Change button. Weak: Fair:
Have you tried passwd from the command prompt?
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