@a4orce84 said in GDM - Not Prompting For Password After Standby:
I did NOT. Thanks.
OK, no problem. I also did the same thing as you - uninstalled LightDM and installed GDM, and I am ALSO using XScreensaver as my screensaver application. While I was able to get the screensaver going, my gnome also stopped asking for a password after resuming from a screen blackout/suspend.
To get the computer to start asking for a password again, I did what has been shared above already - Settings > Privacy > Screen Lock - On.
To get XScreensaver and Power to play nicely together, I used the following settings…
Notice how I’ve timed the system suspend setting to kick in after xscreensaver suspends the monitor. This whole arrangement allows my computer to display a screensaver for 15 minutes, after which the monitor is suspended (in which time if I have walked away for a short while, I can walk back to my computer and resume work again). When xscreensaver has suspended my monitor and the system is truly idle, the Power settings kick in, blacking out the monitor after a further gap of 15 mins, and another wait for 30 mins before the computer is fully suspended. This is for when I leave my seat at night, and leave the computer to be suspended till the next morning.
Hope this helps you.